BÀI TẬP VỀ NHÀ
III. Put the verbs in brackets into the correct form.
1. We ____________ (stay) at home if it rains.
2. She will call you if she ____________ (have) time.
3. If it _________ (not rain) tomorrow, we will go for a picnic.
4. If everyone _______(recycle) paper, metal and glass, we _____ (not produce) so much rubbish.
5. If you ________ (not water) plants, they ________ (die).
6. If the weather __________ (be) bad, we ________ (not go) to the park.
7. We _____ (save) thousands of trees if we _______ (not waste) so much paper.
8. What _______ (happen) if we _______ (keep) polluting the environment.
9. If we ________ (not stop) cutting down so many trees, we ______ (endanger) our oxygen supply.
10. If people ________ (dump) chemicals into rivers, they _______ (not be) able to swim in them in the