---What are you going to do next week?
---If I_______,I’ll visit my grandparents.
A. won’t be busy B. won’t be free
C.am free D. am busy
This is the bike_______I lost last week.
A. that B. what C.who D.whose
---Why are you so excited?
---I_______Lang Lang’s Piano Concert in Beijing tomorrow.
A.was going B.went to
C.am going to D.have gone to
----Is that your dog?
--- No ,that’s Mary’s dog. The brown one is ______.
A. hers B. yours C.mine D.his
To keep safe,everyone________to wear a seat belt (安全带)in the car.
A. is supposed B. suppose
C. supposed D. will suppose
The Changjiang River is one of the ________ rivers in the world.
A. shortest B. longer C.longest D. shorter
