i don't think he put his heart into his study ,______?A.does he B.didn't he C.did he D.doesn't

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i don't think he put his heart into his study ,______?A.does he B.didn't he C.did he D.doesn't

i don't think he put his heart into his study ,______?A.does he B.didn't he C.did he D.doesn't
i don't think he put his heart into his study ,______?A.does he B.didn't he C.did he D.doesn't

i don't think he put his heart into his study ,______?A.does he B.didn't he C.did he D.doesn't
原题应该是这样:I don't think he puts his heart into his study ,______?A.does he B.didn't he C.did he D.doesn't he
答案是A
在解答反意疑问句时,当主句是I think/suppose/consider/believe/...等时,从句才是表达主要思想的部分,这时附加的问句要针对宾语从句来提问.BC两项时态不对;不选D的原因是题目已经是否定的形式了(否定给转移到前面去),后面的附加问句要用肯定形式.

选B

D put 用原形,而主语是he 第三人称单数,所以只能是过去式, D 过去式的反义疑问句 D. didn‘t 针对的肯定是过去时,使用反意疑问句

C