题目内容
Many teachers don’t want their students to ________ doing too much homework.
[ ]
A.
keep busy
B.
be kept busy
C.
keep busying
D.
be kept busying
答案:B
解析:
解析:
|
keep的宾语是their students,它们之间存在被动关系,busy为形容词作补足语。事实上,该句是keep sb.busy doing sth.的被动结构。 |
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