题目内容
The pupils _______ doing their exercises in the classroom now by their teacher.
- A.have kept busy
- B.are busy
- C.are keeping busy
- D.are being kept busy
D
keep sb.doing sth. 表示“使某人忙于……”,其被动语态则为be kept busy doing sth. 题目意在强调学生目前正在“使……做作业,”故用现在进行时的被动态。
keep sb.doing sth. 表示“使某人忙于……”,其被动语态则为be kept busy doing sth. 题目意在强调学生目前正在“使……做作业,”故用现在进行时的被动态。
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