The question is difficult __
A.for answering
B.for being answered
C.to be answered
D.to answer
帮帮忙,不一定选出来,但麻烦说明原因或想法,谢谢
參考答案:d
be difficult to do排除a和b
这里是主动表被动,选d
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The question is difficult __
A.for answering
B.for being answered
C.to be answered
D.to answer
帮帮忙,不一定选出来,但麻烦说明原因或想法,谢谢
參考答案:d
be difficult to do排除a和b
这里是主动表被动,选d