问题描述：
【跪求高人解答】what does bob think of the trip?mary wants to know.(合成一句)
what does bob think of the trip?mary wants to know.(合成一句)
mary wants to know_____ _____ _____ of the trip.
what does bob think of the trip?mary wants to know.(合成一句)
mary wants to know_____ _____ _____ of the trip.
问题解答：
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