问题描述：
每题有一处错误,找出并在横线上改正
1)How long have you bought the car?___________
A How long B. have C.bought
2)He doesn't understand what did we say.___________
A.doesn't B.what C.did we say
1)How long have you bought the car?___________
A How long B. have C.bought
2)He doesn't understand what did we say.___________
A.doesn't B.what C.did we say
问题解答：
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