问题

Whydoyoulooksoworried—MyMacBookProbrokedownandmypaper______unfinishedsince.
A:has beenleft
B:hasleft
C:left
D:hadbeenleft
B:hasleft
C:left
D:hadbeenleft
正确答案是:
同类题型
ood she has prepared for the party is not enough, for there are ______ people than she expected.
What’s the traditional food for the Spring Festival in your home town ——__________ and jiaozi.
Wasn’t it Dr Wang who spoke to you justnow —-_______
Maybe Mr. Green is really in ______ debt, for he is losing ______ weight quickly.
______ Mary happy today—I don’t think so. She ______ look happy this morning.