doesn't know .what bike should he buy for his daughter?合并为一句he doesn't know___ ___ ___ ______ for his daughter
问题描述:
doesn't know .what bike should he buy for his daughter?合并为一句
he doesn't know___ ___ ___ ______ for his daughter
答
he doesn't know what bike he should buy for his daughter
答
what bike to buy
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答
he doesn't know【what bike to buy 】for his daughter