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2道英语单选.excuseme.couldyoupleasetellmewhichgate?A.wehavetogotob.wehadtogotoC.dowehavetogoD.didwehavetogotoThescientisttriedhisbesttomakehisviewA.tounderstandB.understandC.understoodD.underst

题目详情
2道英语单选.
excuse me .could you please tell me which gate _____?
A.we have to go to b.we had to go to
C.do we have to go D.did we have to go to
The scientist tried his best to make his view ____
A.to understand B.understand
C.understood D.understanding
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答案和解析
AC cound能 表示委婉后面不必用过去时态 Make something加动词的过去分词是一种固定搭配 表示某物怎么样 是被动 可以在中间加入不定式To be