Today we will remember them when we see planes ____in the sk

来源：学生作业帮编辑：作业帮分类：英语作业时间：2024/05/05 05:13:17

Today we will remember them when we see planes ____in the sky
A、fly
B、flying

答案应该是B
“see …… do sth ”表示看到某人做某事了,强调看见谁做过什么事.
“see …… doing sth ”表示看到某人正在做某事强调“看见某人正在做某事”.
这里的意思是当我们看到飞机正在飞的时候想到他们,所以应该用doing,而不是do.

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