问题标题：
1.Theconstructionofthebridge()bytheendofnextmonth.A.musthavebeencompletedB.hasbeencompletedC.mustbecompletedD.mustcomplete请问bytheendofnextmonth是指的未来还是已经发生了（过去式）?2.You()wronglasttime.A.
问题描述：
1.Theconstructionofthebridge()bytheendofnextmonth.
A.musthavebeencompletedB.hasbeencompleted
C.mustbecompletedD.mustcomplete
请问bytheendofnextmonth是指的未来还是已经发生了（过去式）?
2.You()wronglasttime.
A.canbeB.couldnotC.couldbeD.maybe
侯向锋回答：
第一题选C
同楼上,NEXTMONTH,肯定是将来,虚拟语气.
第二题,应选C.
虚拟语气,情态动词都是用过去式来表示的.是委婉的表达.
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