We had some visitors__(observe) our teacher’s class this morning.哪种形式?为什么?

问题描述:

We had some visitors__(observe) our teacher’s class this morning.哪种形式?为什么?

现在分词,因为作后置定语。

have sth done,这里只遭受或经历某种情况用observed

observe
have sb do sth 表示“让某人做某事”,后面用动词原形作宾语补足语.
祝你学习进步,更上一层楼!(*^__^*)

observe
have sb. do让某人做某事