--Mum, it's late. Why are you still here?--Dad hasn't come back yet. I for him.A. am waiting B. was waiting C. waited
---Let’s go boating tomorrow. ---_______.
---Would you like _________ the Great Wall with us? ---Yes, of course.
--_______ does she chat with friends on the Internet? --Once a week.
---Can I borrow some money? ---Sorry, you __________.
Millie goes to the Reading Club _________ a week.