问题
选择题
The man is too old, and he can't take care of himself. He has to ________ his sons. [ ]
A. babysit
B. look after
C. depend on
答案
答案：C
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The man is too old, and he can't take care of himself. He has to ________ his sons. [ ]
A. babysit
B. look after
C. depend on
答案：C