The number of tigers in Asia________ getting smaller and smaller and a large number of people_________ trying to protect them．
A．are；are B．is；is C．is；are D．are；is
_________happily the children are flying kites!
A．What B．What a C．How D．How a
—How long have you ____ the motorbike?
—For about two weeks.
A. bought B. had C. borrowed D. lent
---_______ the Internet ___________ in your school?
---Yes, but the computer in our office has broken down.
A. Is, used B. Is, using C. Does, use D. Has, used
— Could you tell me _____________ last night?
— Er, I was watching TV at home.
A. what you were doing B. what were you doing
C. what you are doing D. what are you doing
--- Whose shirt is this?
--- It _______ be Li Lei’s. It is too big for him.
A. could B. must C. can’t D. might
