问题

Are you free after school– Sorry. I’ve planned to treat a friend of mine todinner ___ for his help.
A:in addition
B:in turn
C:in return
D:in total
B:in turn
C:in return
D:in total
正确答案是:
同类题型
He got up very late, _________ his school bag, and _________ to his school at once.
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