题目内容
The question is ________ it is worth doing.
[ ]
A.if |
B.whether |
C.which |
D.what |
答案:B
解析:
解析:
whether在这里引导一个表语从句. |
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题目内容
The question is ________ it is worth doing.
[ ]
A.if |
B.whether |
C.which |
D.what |
whether在这里引导一个表语从句. |