一直在思考,查资料,还是没有弄清楚,
因为后面跟的内容不一样。
be sure that后面加一句完整的句子。如:I'm sure that Simon lives here. Simon lives here. 是完整的句子。
be sure to do sth. 如:They are sure to be late. be late 是一个动词而不是句子
be sure of+名词 如:We're sure of his innocence.
be sure that=be certain that
be sure that后面加一句完整的句子。如:I'm sure that Simon lives here. Simon lives here. 是完整的句子。
be sure to do sth. 如:They are sure to be late. be late 是一个动词而不是句子
be sure of+名词 如:We're sure of his innocence.
be sure that=be certain that
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第1个回答 2020-03-05
be sure of +n.
be sure to +v.
be sure to +v.