Thereportersaid that theUFO east to westwhenhesawit.
Jim, ___ read books while you are walking in the street. It’s very dangerous.
The children enjoyed_______ very much last night.
Shanghai is bigger than_____in Jiangsu and bigger than______in China.
- ______ exercising, and you'll be healthier.
There______ a sport meeting in our school this weekend, isn't there?