英语26. I ______ while reading the English textbook. Luckily, my roommate woke me up in time!

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26. I ______ while reading the English textbook. Luckily, my roommate woke me up in time!
a.had fallen asleep b.have fallen asleep c.fell asleep d.fall asleep

为什么

这问题很难
语法上总觉得 had fallen asleep 和fell asleep 都对

I ___ while reading = I ___ while i was reading ...
为了句子前后比较一致
我会选

I had fallen asleep while reading ...

C
fell是fall的过去式，fall asleep 表示“睡着”

a.had fallen up

C 睡着了

while(i = 0) while( str[i++] ) 是什么意思？ While building a tunnel through the mountain,______. 4.While I ___ TV, the telephone_____. I ___the new words while you ____ 英语题：I don't think it advisable that John ______ to this position since he has no experience. while I was doing可省略I was吗英语口试：My favourite ______ May I go swimming? No, you ______. I shall tell him the truth, ______ .