помогите пожалуйста
с номером 4

1. Did you and Joe go out last Saturday? 
b) Yes, we did
2. Who was your first English teacher?
a) Mr Johnson
3. When did Sadie sell her bike?
b) Last month
4. Were Linda and Beth at the conсert?
с) No, they weren't
5. Which video did you watch?
с) Titanic