Ответ:

  1. A: Are you doing anything interesting this evening?
    B: No, I don't think so. I am staying in.
  2. A: How long have you known Kathy?
    B: Since they met at university.
  3. A: My friend has forgotten to buy me something for my birthday.
    B: Never mind.
  4. A: Have you read the new Harry Potter book yet?
    B: I am reading it now actually.
  5. A: Why are you in such a hurry?
    B: Because the film starts at 8 o'clock.
  6. A: What are you doing for your holidays this summer?
    B: We are thinking of going to Spain for a week.
  7. A: The weather has been getting colder since last Monday.
    B: I know. It is getting colder and colder as the days go by.
  8. A: Do you like tennis?
    B: Yes, I have been a member of the local club for years.
  9. A: What are you doing?
    B: I am tasting the soup to see if it's OK.
  10. A: The room smells awful.
    B: Why don't you open the window?