Why are you here? You are supposed ______ in the classroom now.

A. to study
B. to be studied
C. studying
D. to be studying
D
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科目:初中英語 來源:同步題 題型:單選題

Why are you here? You are supposed ______ in the classroom now.
[     ]
A. to study
B. to be studied
C. studying
D. to be studying

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