【经典实例】
Professor James will give us a lecture on the Western culture, but when and where _________ yet.
A.
hasn’t been decided
B.
haven’t decided
C.
isn’t being decided
D.
aren’t decided
【解析】
A。根据句意,此处应用被动语态,不用主动语态,故排除B;又因为when and where表示单数意义,故排除D;再根据句末的yet可知,最好用现在完成时,故选A最佳。
【类似例句】
Who or what is responsible for our failure? 我们失败的症结在哪里?
Where, when and how did she die? 她是在何地、何时及如何死的?
【跟踪训练】
1.
The doctor gave me some instructions on _________ to take the medicine.
A.
when and how
B.
what and how
C.
who and what
D.
which and what
2.
—Did you know Lucy was back in England?
—Is she—since _________?
A.
what
【有关“疑问词”的语法陷阱题】相关文章:
★ 关于冠词的用法
★ 关于修饰语的问题
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