Make sentences using the words and phrases given.
13. Nam/ play football/ weekends. __________________________________________________ .
14. I/ excited/ first day/ school. __________________________________________________ .
15. They/ do/ morning exercise/ now. __________________________________________________ .

Ex3: Fill the gaps with the correct preposition.
1. The children are excited __________ the school trip.
2. Dorothy put __________ her coat and went out.
3. We have English, maths and science __________ Tuesday.4. What do you usually do __________break time?
5. __________ the afternoon I play football __________ the playground.
6. I go home __________ 4 o’clock everyday.
7. Vy is doing her homework __________ the library.
8. Many boarders go home __________ weekends.

Điều gì sẽ xảy ra nếu con người khai thác tài nguyên thiên nhiên một cách bừa bãi và thải ra môi trường nhiều chất độc hại?