she said she didn't take the dictionary,but I am sure she____.A.is B.was C.does D.did为什么选D?精辟回答令加分.

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she said she didn't take the dictionary,but I am sure she____.A.is B.was C.does D.did为什么选D?精辟回答令加分.
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she said she didn't take the dictionary,but I am sure she____.A.is B.was C.does D.did为什么选D?精辟回答令加分.
she said she didn't take the dictionary,but I am sure she____.
A.is B.was C.does D.did
为什么选D?
精辟回答令加分.

she said she didn't take the dictionary,but I am sure she____.A.is B.was C.does D.did为什么选D?精辟回答令加分.
正确答案是d,考察的是宾语从句,前面的She said she didn't take the dictionary表示她说的这个动作发生在过去,因为主句用的过去时从句也应该用过去的某种时态,后面的 I am sure 是
,根据语法规则主句用现在时从句根据具体情况选用时态,因为前面已经提到此动作是发生在过去的,所以应排除A和C,而take是
,所以应该用
DID.
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因为she后面的行为在前面已经提及,所以可以用表动作的do来替代,又因为我相信的是她过去的行为,故用did

这个相当于省略句。did代替了take the dictionary,根据时态,是过去式

因为是说过去的事
完整的是...........,but I am sure she took the dictionary
did的时态与前面didn't take 是一致的

定语从句是前肯后否,前否后肯。因为前面是didn't所以后面一个一定是肯定的。又因为要一致,所以选D

take是个及物动词,有确切动作的的词,故排除系动词“is”和“was”
take这个动作是过去发生的,故不能选“does”,而表示一般过去式的只能是“did”。
补全省略部分:.... , but I am sure she took the dictionary.
你可以明显的看出来 did 是用来替换 took 的。...

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take是个及物动词,有确切动作的的词,故排除系动词“is”和“was”
take这个动作是过去发生的,故不能选“does”,而表示一般过去式的只能是“did”。
补全省略部分:.... , but I am sure she took the dictionary.
你可以明显的看出来 did 是用来替换 took 的。

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