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Robertissaidabroad,butIdonotknowwhatcountryhestudiedin.A.tohavestudiedB.tostudyC.tobestudyingD.tohavebeenstudying
题目详情
Robert is said______ abroad,but I do not know what country he studied in.
A.to have studied
B.to study
C.to be studying
D.to have been studying
A.to have studied
B.to study
C.to be studying
D.to have been studying
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答案和解析
答案A
此题考查非谓语动词的用法.is said to do 结构中的不定式形式有三种,即：to do,to be doing,to have done,并有相应的被动语态.做此题的关键是but从句中动词的时态,句中studied为过去时态,意味着他过去在国外学习,故用不定式的完成式,而选B则表示study动作是将要发生的,选C则表示动作是正在进行."
此题考查非谓语动词的用法.is said to do 结构中的不定式形式有三种,即：to do,to be doing,to have done,并有相应的被动语态.做此题的关键是but从句中动词的时态,句中studied为过去时态,意味着他过去在国外学习,故用不定式的完成式,而选B则表示study动作是将要发生的,选C则表示动作是正在进行."
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