48.No sooner____________to bed than he heard a knock at the

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48.No sooner____________to bed than he heard a knock at the door.
A.had he gone
B.he had gone
C.did he go
D.he went
50.On the ground ____________ a dead snake.
A.did lie
B.did lay
C.laid
D.lay

48.A
no sooner…… than一"……就……"前用倒装,后用正常语序
50.D
表示地点的状语放前面时,引起倒装,动词放在主语之前即可,不需再借助助动词,例如There comes the bus而不用there does come the bus；
lie“躺”的过去分词为lay

48.No sooner____________to bed than he heard a knock at the No sooner_____asleep than she heard a knock at the door No sooner （）asleep than she heard a knock at the window 英语分析,he heard a knock at the door .he 是主语,heard 是谓语,a knock i was about to go to bed()I heard a knock at the door while he was reading the letter,he heard a knock at the door when he heard a knock at the door ,he went _____ quickly When he heard a knock at the door,he went ___ quickly. He_____just_____asleep when he heard a loud knock on the doo [-A75] After a knock at the door,the child heard his mother' After a knock at the door ,the child heard his mother’s voic After a knock at the door,the child heard his mother's voice