问题
选择题
I'll type your report if you are willing to look after my baby ________.
A．in time
B．in exchange
C．in turn
D．in place
答案
答案：B
答案 B [in time及时；in exchange作为交换；in turn反过来，依次；in place在适当的位置。根据句意选B项。]
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