V. 

1. Students should turn off the lights before leaving class.

2. Children are very intrested in robots.

3. My future house will have a beautiful sea view.

4. If the river is polluted, the fish will die.

5. Tokyo is the world's biggest and crowded cities.

1. Students should turn off the lights before leaving class.

2. Children are very intrested in robots.

3. My future house will have a beautiful sea view.

4. If the river is polluted, the fish will die.

5. Tokyo is the world's biggest and crowded cities. 

phần còn lại mik chịu