________youhadbeenhere,wewouldn’thavehadsomuchtroublethen.
A、whenB
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Thiscarisveryexpensive.Youhavetopayhalfamilliondollars________it.
TheteachersaidthatJane________workharderthefollowingsemester.
He________violinwhenIwanttosleep.
________youhadbeenhere,wewouldn’thavehadsomuchtroublethen.
Iappreciate________(give)theopportunitytostudyabroadthreeyearsago.