Jack ________ come back. (    )

A．don't

B．doesn't

C．isn't

找出句中的错误并在横线上改正：
Theydid morning exercises every day. （______）________
A    B   C

用所给单词的正确形式填空
1. What _________ (do) you know about the Olympic Games?
2. _________ (do) you watch the Olympic Games on TV?
3. The Olympic Games take place every four _________ (year).
4. There are five _________ (ring) on the Olympic Flag.
5. We can see _________ (swim) at Summer Olympics.

I like to read a ________.(    )

A．hand

B．clothes

C．book

Daming didn’t _________ football. He _________ games yesterday.

A．played, play

B．play, played