You must keep the door _______ when you leave your room. — But I want to get the fresh air. I think I can keep the window ________ instead.

Could you tell me something about Zheng He?–Sure. He was a Ming Dynasty explorer __ the Chinese people are proud of.

The window of my bedroom is ______ the door. [ ]

Whose is this T-shirt?— It’s , the girl under the tree.

Let’s take a walk _____ the park on Center Avenue. [ ]