Food safety is important. Rules to stop people from food pollution.
Nanjing isn’t as large ___Shanghai, however, it’s the second____city in East China.
He always seems _____. Now he’s looking ______at his new drawing.
Why not ____ your teacher for help when you can’t finish _____ the Story by yourself?
Look! A number of people at Renmin Square__ something.The number of them ___about1000.
Here is the book. First ___________ it and then tell me what you think of it.