问题描述：
What happen...What's the matter ...What's wrong .的用法～后面+什么?
He has learnt a lot______his teacher?
a,about b,form c,by d,with
求show off ,show up ,show around,show in 四个词组的意思?
He has learnt a lot______his teacher?
a,about b,form c,by d,with
求show off ,show up ,show around,show in 四个词组的意思?
问题解答：
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