一、阅读下面的五个场景，选出正确的答语。
1. Are there twenty apples?
A. Yes, there are.
B. No, there aren't.

2. Does Dongdong like the red T-shirt?
A. Yes, he does.
B. No, he doesn't.

3. Is it sunny?
A. Yes, it is.
B. No, it isn't.

4. Is Tiantian tired and happy?
A. Yes, he is.
B. No, he isn't.

5. Is it eight o'clock?
A. Yes, it is.
B. No, it isn't.

1.A 2.A 3.B 4.A 5.B