II.

1. John is the shortest person in our class.

2. My sister is the most beautiful girl in my family.

3. Fresh noodles are the most expensive food in this restaurant.

4. He is the most intelligent in our class.

5. This is the most interesting book I have ever read.

6. Which is the most dangerous animal in the world?

7. Who is the richest woman on earth?

8. He was the most clever thief at all.

9. Phong is the most intelligent in our class.

10. In Viet Nam, April is the hottest month of the year.

11. New York is the most exciting city in the world.

III.

1. If we pollute the air, we will have breathing problems.

2. If we cut down the trees in the forest, there will be more floods.

3. If there is noise pollution, people and animals will having hearing problems.

4. If people want to save environment, they will stop using so much motorbike.

5. If we reduced the polluted soil, we will have enough food to eat.

6. If Henry fails his examination, his parent will be sad.

7. If you don't turn off unwanted lights, you will waste a lot of electricity. 

8. If we plan the tree, we will save the environment.

9. If we use reusable shopping bags, we will save the earth.

10. If we have a shower instead the bath, we will save a lot of water.

(Phần chữ nghiêng là phần cần viết vào)