Tom is finding his book,but___it.A.didn't findB.hasn't findC.won't findD.isn't findI want the reason

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Tom is finding his book,but___it.A.didn't findB.hasn't findC.won't findD.isn't findI want the reason

Tom is finding his book,but___it.A.didn't findB.hasn't findC.won't findD.isn't findI want the reason
Tom is finding his book,but___it.
A.didn't find
B.hasn't find
C.won't find
D.isn't find
I want the reason

Tom is finding his book,but___it.A.didn't findB.hasn't findC.won't findD.isn't findI want the reason
选 A
排除法可以排除B和D , B中应该是hasn't found 现在完成时,后面是过去分词, D中 isn't finding 或者isn't found ,be动词跟现在分词或者过去分词. C won't find是不会找到,是表将来的,这里是表示结果的. 没有找到.所以选A

C, 考虑时态,a b都排除。d 语法不对。只有c了
汤姆正在找他的书,但他永远都找不到的。

A. didn't find

现在正在找
但是现在还没找到
说明这件事对现在产生了影响,最好要用现在完成时
但B是find,形式不对
只有选A