be sure+从句/be sure to do sth /be sure of sth/doing sth 有什么区别吗?
人气：136 ℃ 时间：2020-01-27 10:34:56
解答
都一样.
由于是从句,所以后面可以接足够长的句子或者有足够的句式变化,语气上平和,正式.
I'm sure that he came to school early.
而sure of doing 就是简单表达“我确定干什么”.
I'm sure of coming to school early.
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