He must be in the building because he was seen()the building just now. A.enter B.to enteC.enteringD
题目
He must be in the building because he was seen()the building just now. A.enter B.to enteC.enteringD
答案
to enter
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我想写一篇关于奥巴马的演讲的文章,写哪一篇好呢?为什么好
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