【题目】He helped me when I was in trouble, but asked for nothing .
A.in relief B.in return C.in addition D.in charge
【答案】B
【解析】
考查介词短语辨析。句意:我有困难时他帮了我,但不要求任何回报。A. in relief松了口气;B. in return作为报答;C. in addition另外;D. in charge负责。结合句意表示“作为报答”应用短语in return。故选B。