What’s the noise ? It sounds as if it comes from upstairs. –______. It must be the window-cleaner working , next door.

Do you know the cost of buying a house in Shanghai is much higher than __ in Tibet? —Of course, I know. It’s impossible for me to buy_____ there.

There are _______students in my school.

_______ generous _______ the little girl to share her toys with the other kids. [ ]

“I’ve never eaten a hamburger.”— “_________ have I.”