Peter will give me five sweets an apple, but in fact I don’t have a sweet tooth.
A.in search of
B.in need of
C.in case of
D.in exchange for
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D解析本题考查介词短语辨析。句意：彼得愿意给我五块糖换了个苹果，但事实上我不喜欢甜食。in exchange for交换;调换；in case of以防；in need of需要；in search of寻找。