C. had written D. was writing
【陷阱】容易误选B或C。
【分析】此题应选D,这是由 but I dont know whether he has finished it 这一句话的语境决定的,全句意为史密斯先生去年在写一本书,但我不知道他现在是否写完了。有的同学可能由于受 last year的影响而误选B。但若选B,则句子前半部分的意思则变为史密斯先生去年写了一本书,既然是写了,那么这与下文的但我不知道他现在是否写完了相矛盾。
6. He has changed a lot. He _______ not what he _______.
A. is, is B. was, was
C. is, was D. was, is
【陷阱】几个干扰项均有可能误选。
【分析】最佳答案选C,上文说他变化很大,即他现在不是过去的那个样子了,故第一空填is,第二空填 was(其实第二空也可用 used to be)。请看类例:
What place is it? Havent you found out we _____ back where we ______?
A. were, had been B. have been, are
C. are, were D. are, had been
答案选C,We are back where we were 的意思是我们(现在)又回到刚才来过的地方。
7. He is very busy. I dont know if he _____ or not tomorrow.
A. come B. comes
C. will come D. is coming
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