问题

Tom isn’t _____ home, he is _____ his classroom.
A: in; at
B: at; in
C: in; in
D:at; at
B: at; in
C: in; in
D:at; at
正确答案是:
同类题型
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fantastic documentary it is!– Do you mean the hot film “Diaoyu Island—-The Truth”?
His idea was such a good one ______ we all agreed to use it.
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