The notebook I ____ I_______ is in my school bagA think lost B thought had lost C think had lost D thought have lost
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The notebook I ____ I_______ is in my school bagA think lost B thought had lost C think had lost D thought have lost
The notebook I ____ I_______ is in my school bag
A think lost B thought had lost
C think had lost D thought have lost
The notebook I ____ I_______ is in my school bagA think lost B thought had lost C think had lost D thought have lost
我本以为丢失的笔记本在我的书包里.
是过去认为笔记本丢失：先丢失,才能认为.所以“丢失”发生在“认为”之前.
“认为”使用一般过去时,那“丢失”就用去完成时表示过去的过去.
thought是一般过去时,had lost是过去完成时
The notebook I thought I had lost is in my school bag.
过去完成时
1. 过去完成时的定义
过去完成时既可表示过去某个时间或动作之前所发生的事情(常用时间状语有already, before, ever, just, never, still, yet)，也可表示过去某个时间或动作之前...
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The notebook I thought I had lost is in my school bag.
过去完成时
1. 过去完成时的定义
过去完成时既可表示过去某个时间或动作之前所发生的事情(常用时间状语有already, before, ever, just, never, still, yet)，也可表示过去某个时间或动作之前所发生的动作一直持续到过去某个时间(常接时间状语：since +时间点, for + 时间段)。
如：
When I got to the station, the train had left. 当我到达车站时，火车已经开走了。
We had learnt fifteen lessons by last week. 到上周为止，我们学完了十五篇课文。
He had stayed here for two days before he left. 他走之前在这儿呆了两天。
He said that he had lived there since he was ten. 他说他十岁起就住在那儿了。
2. 过去完成时的结构
过去完成时由“had + 过去分词”构成。
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选B
因为书包已经丢失 我在想是过去的 用过去式thought
第二空用过去完成时 即过去的过去 所以是had lost
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