题目内容
When and where to build the new laboratory ________ yet.
- A.isn't decided
- B.are not decided
- C.hasn't decided
- D.have not decided
A
【巧解导析】hasn't decided和have not decided为完成时的主动语态,故C,D不对;疑问词加不定式充当主语,谓语动词用单数,故B不正确.
【巧解导析】hasn't decided和have not decided为完成时的主动语态,故C,D不对;疑问词加不定式充当主语,谓语动词用单数,故B不正确.
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