MFS GOVERNMENT SECURITIES FUND
NSAR-B, 1998-04-30
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<PAGE>      PAGE  1
000 B000000 02/28/98
000 C000000 0000356349
000 D000000 N
000 E000000 NF
000 F000000 Y
000 G000000 N
000 H000000 N
000 I000000 3.0.a
000 J000000 U
001 A000000 MFS GOVERNMENT SECURITIES FUND
001 B000000 811-3327
001 C000000 6179545000
002 A000000 500 BOYLSTON STREET
002 B000000 BOSTON
002 C000000 MA
002 D010000 02116
003  000000 N
004  000000 N
005  000000 N
006  000000 N
007 A000000 N
007 B000000  0
007 C010100  1
007 C010200  2
007 C010300  3
007 C010400  4
007 C010500  5
007 C010600  6
007 C010700  7
007 C010800  8
007 C010900  9
007 C011000 10
008 A000001 MASSACHUSETTS FINANCIAL SERVICES COMPANY
008 B000001 A
008 C000001 801-17352
008 D010001 BOSTON
008 D020001 MA
008 D030001 02116
010 A000001 MASSACHUSETTS FINANCIAL SERVICES COMPANY
010 C010001 BOSTON
010 C020001 MA
010 C030001 02116
011 A000001 MFS FUND DISTRIBUTORS, INC.
011 B000001 8-27864
011 C010001 BOSTON
011 C020001 MA
011 C030001 02116
012 A000001 MFS SERVICE CENTER, INC.
012 B000001 84-1316
012 C010001 BOSTON
012 C020001 MA
<PAGE>      PAGE  2
012 C030001 02116
013 A000001 DELOITTE & TOUCHE LLP
013 B010001 BOSTON
013 B020001 MA
013 B030001 02110
015 A000001 STATE STREET BANK AND TRUST COMPANY
015 B000001 C
015 C010001 BOSTON
015 C020001 MA
015 C030001 02110
015 E010001 X
018  000000 Y
019 A000000 Y
019 B000000   53
019 C000000 MASSFINSER
020 C000001      0
020 C000002      0
020 C000003      0
020 C000004      0
020 C000005      0
020 C000006      0
020 C000007      0
020 C000008      0
020 C000009      0
020 C000010      0
021  000000        0
022 A000001 GOLDMAN SACHS & CO.
022 B000001 13-5108880
022 C000001   7018859
022 D000001    124518
022 A000002 MORGAN, J.P. SECURITIES
022 B000002 13-3224016
022 C000002    242347
022 D000002    180953
022 A000003 CARROLL MCENTEE
022 B000003 13-2650270
022 C000003    307935
022 D000003      3984
022 A000004 LEHMAN BROS.
022 B000004 13-2518466
022 C000004    171069
022 D000004     95446
022 A000005 SALOMON BROTHERS
022 B000005 13-3082694
022 C000005    108854
022 D000005     65488
022 A000006 BEAR STERNS
022 B000006 13-3299429
022 C000006     87410
022 D000006     60523
022 A000007 UBS SECURITIES
<PAGE>      PAGE  3
022 B000007 13-5674085
022 C000007     61277
022 D000007     54806
022 A000008 MERRILL LYNCH
022 B000008 13-5674085
022 C000008     68266
022 D000008     39275
022 A000009 NATIONS BANK
022 B000009 75-0520130
022 C000009     90114
022 D000009         0
022 A000010 CITIBANK
022 B000010 00-0000000
022 C000010      5114
022 D000010     70231
023 C000000    8385845
023 D000000     791509
024  000000 N
025 D000001       0
025 D000002       0
025 D000003       0
025 D000004       0
025 D000005       0
025 D000006       0
025 D000007       0
025 D000008       0
026 A000000 Y
026 B000000 Y
026 C000000 N
026 D000000 Y
026 E000000 N
026 F000000 N
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026 G020000 N
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028 A010000      4982
028 A020000      1314
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028 A040000      7101
028 B010000     16125
028 B020000      1312
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028 B040000     12160
028 C010000      8182
028 C020000      1390
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028 C040000      5883
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028 D020000      1374
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<PAGE>      PAGE  4
028 D040000     14680
028 E010000     16237
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028 E040000     23924
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028 F020000      1385
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028 G020000      8143
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028 G040000     72886
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030 A000000    422
030 B000000  4.75
030 C000000  0.00
031 A000000     59
031 B000000      0
032  000000    363
033  000000      0
034  000000 Y
035  000000    285
036 A000000 N
036 B000000      0
037  000000 N
038  000000      0
039  000000 N
040  000000 Y
041  000000 Y
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042 D000000  49
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042 H000000   0
043  000000   2210
044  000000      0
045  000000 Y
046  000000 N
047  000000 N
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048 A020000 0.000
048 B010000        0
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048 C010000        0
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<PAGE>      PAGE  5
048 D010000        0
048 D020000 0.000
048 E010000        0
048 E020000 0.000
048 F010000        0
048 F020000 0.000
048 G010000        0
048 G020000 0.000
048 H010000        0
048 H020000 0.000
048 I010000        0
048 I020000 0.000
048 J010000        0
048 J020000 0.000
048 K010000        0
048 K020000 0.000
049  000000 N
050  000000 Y
051  000000 N
052  000000 N
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054 B000000 Y
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054 D000000 N
054 E000000 N
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055 A000000 Y
055 B000000 N
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058 A000000 N
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060 A000000 Y
060 B000000 Y
061  000000     1000
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062 C000000   3.0
062 D000000   0.2
<PAGE>      PAGE  6
062 E000000   0.0
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070 D020000 N
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070 E020000 N
070 F010000 N
070 F020000 N
070 G010000 N
070 G020000 N
070 H010000 N
070 H020000 N
070 I010000 N
070 I020000 N
070 J010000 Y
070 J020000 N
070 K010000 Y
070 K020000 N
070 L010000 N
070 L020000 N
070 M010000 N
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070 N010000 Y
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<PAGE>      PAGE  7
070 O010000 Y
070 O020000 N
070 P010000 Y
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070 Q010000 N
070 Q020000 N
070 R010000 N
070 R020000 N
071 A000000    858452
071 B000000    805349
071 C000000    379134
071 D000000  212
072 A000000 12
072 B000000    30232
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072 D000000        0
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072 S000000        4
072 T000000     2208
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072 Z000000    25776
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072CC010000     7678
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072DD020000     6423
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073 A010000   0.6100
073 A020000   0.5400
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073 C000000   0.0000
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074 B000000      762
<PAGE>      PAGE  8
074 C000000    12570
074 D000000   412802
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074 H000000        0
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074 J000000    16415
074 K000000        0
074 L000000    10228
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074 R040000      914
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074 T000000   418800
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074 U020000    12095
074 V010000     9.69
074 V020000     9.68
074 W000000   0.0000
074 X000000    23253
074 Y000000        0
075 A000000        0
075 B000000   408752
076  000000     0.00
077 A000000 Y
077 B000000 Y
078  000000 N
080 A000000 NATIONAL UNION INSURANCE
080 C000000    80000
081 A000000 Y
081 B000000 115
082 A000000 Y
082 B000000      100
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083 B000000        0
084 A000000 N
084 B000000        0
085 A000000 Y
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<PAGE>      PAGE  9
086 C020000      0
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086 F020000      0
SIGNATURE   ELLEN M. MOYNIHAN                            
TITLE       ASSISTANT TREASURER 
 


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