—Hi, why are you here?—I ________ for Susan for 15 minutes.A. have been waiting B. have waiting C. am waitingD am been waiting
--May I borrow your English book? --Of course.
I like listening to music in my free time.
LiLei often goes to school on foot.
---Mum, I’m thirsty. I want to have something to drink. ---What about some _______?
---_______ you write or tell stories? ---I’m good at writing stories, though I’m not so good at telling them.