Listen to these conversations. Pay attention to the intonation of the question tags. Then practise saying them in pairs.
1. A: So, we need to protect local ecosystems, don't we?
B: Yes, we do.
2. A: You'll take the books back to the library, won't you?
B: OK, I'll do that tomorrow.
3. A: We don't want our planet to lose biodiversity, do we?
B: No, we don't.
4. A: An ecosystem is a community of living things, isn’t it?
B: No, it isn’t. It’s a community of both living and non-living things.
5. A: You went to Cuc Phuong National Park last weekend, didn’t you?
B: Yes, I did.