Did you see the accident,sir?这里为什么用Did而不用Do,谁能解释下...
did you see the accident h_____?
did you see the accident h__
Did you see the accident happen
what did he see when he went into the office?这里为什么用when而不用别的
Did you use to be afraid of the dark?为什么要用Did而不用Were.
你为什么这么做?翻译为why did you do?为什么这里要用did的,而不能用do?
Did you see the accident ________when you were walking past?
-Did Linda see the traffic accident ?
-Did Linda see the traffic accident
What did your boss say to him 中为什么不用do而用did?
How much did the computer cost ben?这句话中为什么要用did不用do?
这句话为什么用did 不用do