Task 1. Decide whether the question tags in B's responses have rising or falling intonation. Mark (rising intonation) or (falling intonation) after the question tags.

(Quyết định xem các câu hỏi đuôi trong câu trả lời của B có tăng hay giảm ngữ điệu. Đánh dấu (tăng ngữ điệu) hoặc (giảm ngữ điệu) sau các câu hỏi đuôi.) 

1. A: People living in the city are at a great risk of developing a lung disease.

B: Because the air is polluted, isn't it?

2. A: I've been living here for twenty years. I know every corner in this town.

B: So you know where to buy second-hand books, don't you? I'm looking for some.

3. A: I've invited Ann to a concert, but she can't make it. She has an English test tomorrow.

B: She has to do some revision tonight, doesn't she?

4. A: The nightlife in this city is so boring.

B: It isn't. I know a night market just around the corner. Let's try some local food there, shall we?

5. A: The government should look for ways to deal with the traffic problems here.

B: I agree. They shouldn't allow vending carts to move in the streets during the rush hour, should they?