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1. The environment will become seriously polluted.

2. Because Lan missed the bus, she was late for school yesterday.

3.  pleased

4. sorry

5. amazed

6. These children study well.

7. If we chop the trees for wood , there will be big floods every year.

8.  If we keep our neighborhood clean, we will have an ideal place to live.

9. If we cut down the trees in the forest, there will be big floods every year.

10. Because Nam was sick, he didn't go to school yesterday.

1. If we go on littering, we will save our environment.

2. Lan missed the bus. She was late for school yesterday. 

Lan was late for school yesterday because Lan missed the bus.

3. Ba: Dad! I got mark 9 on my test!

Mr. Ha: That’s wonderful.

I’m pleased with my hard-working 

4.. A: I’m sorry. I broke your bicycle 

    B: Don’t worry. I can fix it.

5. Miss Nga : Congratulations!

Lien: That’s wonderful. I’m amazed that i won the first prize. 

6. These children are good students. 

These children study well.

7. If / we / chop / trees / wood / there / be / big floods / every year. (Write the complete sentence with the words given.) 

If we chop trees to get wood, there will be big floods every year.

8. If we keep our neighborhood clean, we will keep our house claen easily. 

9. If we cut down the trees in the forest, we will have a lot of big floods in the future.

10. Nam was sick. He didn’t go to school yesterday. 

Because sickness, he didn't go to school yesterday.

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