问题
选择题
The boy is waiting ____ his sister and they will go to the hospital to wait ____ their sick mother.
A．for,on
B．on,for
C．for,for
D．on.on
答案
答案：A
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The boy is waiting ____ his sister and they will go to the hospital to wait ____ their sick mother.
A．for,on
B．on,for
C．for,for
D．on.on
答案：A