John sings very well. We listened to          sing a beautiful song yesterday. 

Though the passage is easy, I don’t think __________can understand it.

– Which of these two English books will you borrow? – I’ll borrow     of them. Because they are very interesting. 

—Look ,that’s Mike,your classmate. --Yes,Let’s go and say hello to_________.

—Is this your book, Alice?—Yes, it is ____ book.