when did you do that 中do 为什么用原形不用过去式?
when did you do that 中do 为什么用原形不用过去式?
What did you mean by saying that?中为什么不用did要用do拜托各位了 3Q
when do your parents visit their friends 为什么用do 不用did
since when do you guys know each other为什么不用过去式
Did you finish doing your homework中do为什么加ing,did后不是加动词原形吗
When Did We Do That
这句话为什么用did 不用do
英语过去式什么意思比如 do you 和 did you 都是同一个意思,为什么是过去式?什么时候用过去式
Do you know where he lives?do did dose后面动词不是用原形吗?为什么要用lives加
do的过去式“did”后面的动词恢复原形吗
when did you do yesterday?
How much did the computer cost ben?这句话中为什么要用did不用do?