题目内容
To do it a bit for the motherland, ________.
[ ]
A.
working hard is necessary
B.
to work hard is necessary
C.
one should work hard
D.
it is necessary to work hard
答案:D
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题目内容
To do it a bit for the motherland, ________.
working hard is necessary
to work hard is necessary
one should work hard
it is necessary to work hard