题目内容
桬xcuse me.Did you see Tom just now?
桰 saw him ______ the building and go upstairs.
A.to enter B.enter C.entering D.entered
答案:B
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题目内容
桬xcuse me.Did you see Tom just now?
桰 saw him ______ the building and go upstairs.
A.to enter B.enter C.entering D.entered