用所给单词的正确形式填空。
【小题1】_______ (do) run on the stairs. You may get hurt.
【小题2】_______ (do) keep your study clean.
【小题3】Fire can be _______ (danger). So don’t play with fire.
【小题4】We should know _______ (safe) first!
【小题5】I am _______ about the _______ trip to Hainan Island. (excite)
【小题6】We _______ (must) keep our classroom clean.
【小题7】_______ (watch) out! The car is coming!
【小题8】_______ (cook) can be fun.
【小题9】In spring, there are _______ (colour) flowers in the park.
【小题10】The story _______ (sound) interesting!

Look and colour the picture: It’s a red chair.

请选出不同类的一项。
（_____） 1. A. snake    B. farmer   C. writer
（_____） 2. A. wind B. sun C. ugly

Please wait for the ________ light. It’s safe.（ ）

A．green

B．red

Complete the sentences with the given words in their proper forms (用括号中所给单词的适当形式完成下列句子。每空格限填一词)
1.We should have enough exercise to stay________. (health)   
2.He watches television________a day. (one)   
3.How many outdoor________do you like? (activity)   
4.You should eat________(little) meat and________(many)vegetables and fruit.   
5.Ben is________interested in cartoon films. (real)