---Be careful! The traffic light is red. You mustn’t go ________ the street now.---Oh, I’m sorry. I didn’t see the lights.
We _______ many interesting books. He ________ only one.
—Is ______ red bag under the table yours, Jean? —No, I only have ______ yellow bag. Maybe it’s Julia’s.
—Whose (谁的) hat is this? —I think it's _______.
---Are there any ________ on the farm? ---Yes, there are some。
---What are________ teachers doing?---They are having a meeting.