非谓语动词的选择练习Police are now searching for a woman who is reported to ___since the flood hit the area over the past few years.A.have been missing B.have got lost C.be missing D.get lost我的问题是这个since 从句为什么非得

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非谓语动词的选择练习Police are now searching for a woman who is reported to ___since the flood hit the area over the past few years.A.have been missing B.have got lost C.be missing D.get lost我的问题是这个since 从句为什么非得

非谓语动词的选择练习Police are now searching for a woman who is reported to ___since the flood hit the area over the past few years.A.have been missing B.have got lost C.be missing D.get lost我的问题是这个since 从句为什么非得
非谓语动词的选择练习
Police are now searching for a woman who is reported to ___since the flood hit the area over the past few years.
A.have been missing B.have got lost C.be missing D.get lost
我的问题是这个since 从句为什么非得加在woman的从句中而不是主句：police中,这样的话就不用完成时了啊?

非谓语动词的选择练习Police are now searching for a woman who is reported to ___since the flood hit the area over the past few years.A.have been missing B.have got lost C.be missing D.get lost我的问题是这个since 从句为什么非得
A
现在完成进行时表示searching这个动作从过去一直持续到现在,并且可能或将要持续下去.至于since不用完成时的情况是剧终没有表示时间段的词货短语的时候.而这句中over the past few years.表示一个时间段 !所以要用完成时 !

A
正如你说的since对应的主句要用完成时， 如果是加主句中，那主句要用完成时 the police have been searching..

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