My father was reading a book ________ I was doing my homework.
I can see a pen ______some pencils on the desk.
____________ Davy called me, I was sleeping.
When you’re learning English, just use it, ______ you’ll lose it.
— ______ are you going to Guangzhou?— I’m taking the plane.
— How long have you lived in this new house?— 2010.
