XIX. Complete the following conversation by putting in the correct positive or negative forms of the verbs in brackets.
(Hoàn thành đoạn hội thoại sau bằng cách đặt các dạng khẳng định hoặc phủ định chính xác của động từ trong ngoặc.)
Vy: What are you doing, Mi?
Mi: I’m writing a paragraph about the ways to save our environment.
Vy: Let me see. (Vy reads Mi’s writing.). If you (1. take)______ instead of a bath, you (2. save)______ water.
Mi: Can you give me some more ideas?
Vy: Sure. If you (3. cycle)______ more, there (4. be)_______ less air pollution.
Mi: Why?
Vy: It’s simple. If you (5. cycle)________, you (6. produce)__________ fumes. If there (7. be)_____ fumes, the air (8. be) _______ cleaner.
Mi: I see. I have another idea. If people (9. plant)_________ more trees, there (10. be) ______ floods.
Vy: That’s right. (Vy looks at her watch.) Oh, it’s five already. If I (11. not hurry) ________, I (12. be)_________ late for my English class. Bye, Mi.
Mi: Bye, Vy.
