The bus hit against a tree in the fog and _____ to the deep valley, with ten passengers killed and twenty more wounded.
A. down did it roll
B. down rolled it
C. it down rolled
D. down it rolled
查看答案
So fast _____ that it is difficult for us to imagine its speed.
A. light travels
B. travels light
C. does light travel
D. has light travelled
_____, he knows a lot of things.
A child as he is
B. Child as he is
C. A child as is he
D. Child as is he
Only after liberation _____ to be treated as human beings.
A. did they begin
B. they began
C. that they began
D. had they began
Never before _____ such a stupid man.
A. I have seen
B. I saw
C. have I seen
D. did I see
微信支付 
支付宝支付