Bai 1:
1. If we raise enough money, we will build a shelter for these homeless youths.
2. They have planted trees in public areas recently.
Or: They have recently planted trees in public areas.
3. Because Tony thinks charity is good, he donates a lot of warm clothes.
4. Can I paint this graffiti words over a mural wall?
5. Have you registered Green Summer Campaign yet?
Bai 2:
1. B
2. C
3. C
4. A
5. A
