that's 和that is 有什么不同？为什么外教把我的that's 改成 that is?

Question

如题

Answer 1

楼上的：that's sometime 绝不等于that was

that's只等于that is，你们外教不知道为什么要改！！吼吼！

有一种可能，那就是在这个句子里That's导致念这句话的时候节奏很别扭，而that is念起来就好听了。

你还是贴原话吧。

Answer 2

that's =(现在式)that is / (过去式)that was

Answer 3

写作的时候尽量不要缩写 这是常识

Answer 4

that's sometime = that was