Ответ:
4. Complete the dialogues.
- A:Are Billy and Marcus chatting with their friends? B: Yes, they are.
- A:Are you playing a good computer game? B: No, I'm not.
- A:Is your teacher standing in front of the board? B: Yes, she is.
- A:Are you and your sister having lunch? B: No, we aren't.
- A:Are the students going to the canteen? B: Yes, they are.
Ответ: I'm not, she is, we aren't, they are.
