_____ birds fly to the south to spend their winter every year.
A.Hundreds of B.Millions of C.Half of
It is no doubt that Diaoyu Island _____ China.
A.belongs to B.joins in C.takes up
He didn’t know _____ask for help when the accident suddenly happened.
A.whom to B. what to C. why to
My brother has _____the army since 2 years ago.
A. joined B. been in C. taken part in
Chinese is becoming more and more popular and_____in many schools around the world.
A. is teaching B. has taught C. is taught
—It’s no use speaking to him. He’s _____.
—I’m sorry. I’ll show him a note.
A. blind B. deaf C. old
