I early last night ,but I couldn't ,because I was very tired.A.went to bed ,fell sleep B.went to bed,fall sleep后面的fall是根据前面的时态而定,还是根据couldn't

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I early last night ,but I couldn't ,because I was very tired.A.went to bed ,fell sleep B.went to bed,fall sleep后面的fall是根据前面的时态而定,还是根据couldn't

I early last night ,but I couldn't ,because I was very tired.A.went to bed ,fell sleep B.went to bed,fall sleep后面的fall是根据前面的时态而定,还是根据couldn't
I early last night ,but I couldn't ,because I was very tired.
A.went to bed ,fell sleep B.went to bed,fall sleep
后面的fall是根据前面的时态而定,还是根据couldn't

I early last night ,but I couldn't ,because I was very tired.A.went to bed ,fell sleep B.went to bed,fall sleep后面的fall是根据前面的时态而定,还是根据couldn't
B
I (went to bed)early last night ,but I couldn't (fall asleep) ,because I was very tired.
因为我很疲劳,所以昨晚我早早上床了,但是我睡不着.
时间是last night ,所以第一个空用过去式 went
第二个空 用在情态动词couldn't 之后,所以用动词原形.
你开心.

B could、后面加动词原形

是根据couldn't啦，couldn't 这个情态动词才是根据前面时态来定的。

当然是根据能动词could啦 能动词后面+动词原形

B
I (went to bed)early last night ,but I couldn't (fall asleep) ,because I was very tired.
因为我很疲劳，所以昨晚我早早上床了，但是我睡不着。

时间是last night ，所以第一个空用过去式 went

第二个空 用在情态动词couldn't 之后，所...

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B
I (went to bed)early last night ,but I couldn't (fall asleep) ,because I was very tired.
因为我很疲劳，所以昨晚我早早上床了，但是我睡不着。

时间是last night ，所以第一个空用过去式 went

第二个空 用在情态动词couldn't 之后，所以用动词原形。


希望能帮到你，你开心。

收起

选B。前面的last night表示过去时态，后面也应用过去时，你那could就是can的过去式啊，这里应该不是情态动词，是一般的助动词， 后面就跟着动词fall的原型呗

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