A. weigh
B. weighs
C. weight
D. weights

1. The chemical factory p__________ terrible gas every day.
2. If you b__________ some fresh air, you will feel better.
3. Don't d__________ me now. I'm doing my homework.
4. As we know, n___________ of us likes pollution.
5. You shouldn't throw r___________ here and there.
6. We should do everything we can to protect the e___________.
7. Everyone is s__________ to do something useful.
8. Trees can p__________ the sand from moving towards the rich land.
9. You'd better take a taxi i__________ of walking there. Because it's a long way.
10. We really need to collect w__________ paper and soft drink cans.

Everyone             out of the window and            .

A. look, sing
B. look, sings
C. looks, sings
D. looks, sing

1. My pan pal is from Canada.
    My pan pal ______ ______ Canada.
2. My sister wouldn't like to drink tea.
    My sister ______ ______ to drink tea.
3. Lucy and Lily look the same.
    Lucy ______ ______  Lily.
4. Our school has fifteen classes.
    ______ ______ fifteen classes ______ our school?
5. How was the weather last weekend?
    ______ was the weather ______ last weekend?
6. All of us like playing football.
    ______ ______ like playing football.
7. They gave her an English book.
    They gave an English book ______ ______.
8. What do you think of sitcom?
     ______ ______ ______ like sitcom?
9. She did nothing this afternoon.
    She ______ ______ ______ this afternoon.
10. I found that he was singing in the next room.
      I found ______ ______ in the next room.

1. In China, it _________ (depend) on where you are.
2. That must _________ (be) more fun than _________( take) a bus.
3. In Japan, the three most popular ways of _________ (get)
   to school _________ (be) bus, train, bike.
4. A number of children __________ (plant) trees over there. 
5. The number of the children _________ (be) over 300. 
6. When it _________ (rain), I take a taxi.
7. He usually goes to work on __________ (feet),
   but this morning he __________ (get) a _________ (ride).

A. take
B. takes
C. use
D. uses

A. matches
B. matchs
C. fits
D. does

A. doesn't; does
B. doesn't; doesn't
C. doesn't; watches
D. does; doesn't

A. have 　　　
B. play　　 　　　
C. plays　　 　
D. has

1. The old man _____ (锻炼) every morning.
2. I often _____ (购物) on weekends.
3. We must _____ (保持 ) our classroom clean.
4. There are some _____ (不同) between the two pictures.
5. He _____ (几乎不) goes to restaurant for dinner.
6. Katrina doesn't often ______ (喝) coffee, she likes green tea.
7. My eating ______ (习惯) are not very good.
8. Everyone must ______ (设法) to work hard.