问题
选择题
The mothers saw their children well ____ at the nursery.
[ ]
A. taking care of
B. to take care of
C. to be taken care of
D. taken care of
答案
答案：D
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The mothers saw their children well ____ at the nursery.
[ ]
A. taking care of
B. to take care of
C. to be taken care of
D. taken care of
答案：D