be sure to 和be sure of 区别和用法
人气：220 ℃ 时间：2020-04-10 21:06:34
解答
be sure to do表示说话人确信主语会如何.如He is sure to come back soon.他不久就一定会回来.be sure of +名词/代词/动名词.表示主语确信.He is sure of success.他确信他会成功.
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