【題目】—Hi, Johnson, any idea where Susan is?

—It’s class time, so she _____ in the classroom now.

A. can be B. must have been

C. might have been D. should be

【答案】D

【解析】考查情態(tài)動詞的用法。A. can be可能，可以是；B. must have been一定（對過去事實肯定的推測）；C. might have been可能（對過去事實肯定的推測）；D. should be應該是。句意：—知道蘇珊在哪里嗎？—現(xiàn)在是上課時間，她應該在教室里。故答案選D。

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