读单词，根据每组单词的类别，在横线上填写一个同类别的单词。
1. book shop    museum supermarket ___________
2. hundred thirty million ___________
3. answer collect choose ___________
4. snake kangaroo    sheep   ___________
5. China Japan Australia ___________

找出不同类的单词。
（______） 1. A. country  B. China  C. Canada D. the U.S.
（______） 2. A. flag     B. leaf  C. map    D. speak
（______） 3. A. red   B. yellow  C. green    D. colour
（______） 4. A. Niagara Fall   B. Ottawa  C. map     D. CN Tower

选出不同类的单词
（_________）1.A. orange  B. apple C. red D. lemon
（_________）2.A. candy B. ice cream   C. lemon    D. sour

I hear the teachers will have the meeting for .  (   )

A．two and a half hour	B．two hour and a half
C．two and a half hours	D．two hours and half

选词填空。
school   cars   easy   air    exercise    use
Many people in the world ride bicycles every day. There are more bicycles than ________ in the world today. A lot of Chinese people ride bicycles to go to work or ________. Bicycles are much cheaper than cars. And it is ________ for people to learn to ride. Bicycles are also used for ________. It helps us to keep fit. If each family has a car, it will ________ a lot of energy and pollute the ________. So let us ride bicycle.