I/

1. VTV1 is a national TV channel in Viet Nam.

2. How often do you do judo?

3. Eiffel tower is the most ... landmark in the world (phần ... thiếu tính từ)

4. Last summer, I went fishing with my family.

5. When you go out of the bedroom, you should turn off the lights.

II/

1. Though the bad was bad, they went out alone.

2. I haven't seen Peter for five months.

3. We use the car all time, so we make the air dirty.

4. She likes watching television.

5. No mountain in the world is higher Mount Everest.

III/

1. How many hours a day do you watch TV ?

2. If the Earth is warmer, the sea level will rise.

3. Using reusable water bottles instead of plastic ones.

4. Pelé is the greatest football player of all time.

5. The Olympic Games is held once every four years.

II. 

1. Though the weather was bad, they went out alone.

2. I havent seen Peter for 5 months.

3. If we use the car all time, we'll make the air dirty.

4. She likes watching TV.

5. No mountain is higher than Mount Everest.