— The number of pandas is getting________ because their living areas are becoming polluted. — So we must do something to protect them.
---_______ the Internet ___________ in your school? ---Yes, but the computer in our office has broken down.
— Could you tell me _____________ last night? — Er, I was watching TV at home.
--- Whose shirt is this? --- It _______ be Li Lei’s. It is too big for him.
I saw many ________ eating grass on the hill.
—By the way, have you got ______ e-mail address? —Oh, yes, it is simonland @ hotmail.com.