He is sure----his success.A.at B.of C.in D.on

问题描述:

He is sure____his success.A.at B.of C.in D.on
1个回答 分类:英语 2014-12-14

问题解答:

我来补答
B of
be sure of sth .对---确信.
他确信他可以成功.
 
 
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