—May I ask you some questions, Dr. Wang? —_______A. You’re welcome.B. Sure, go ahead.C. No, I’m busy.
— What’s the matter? —I have a stomachache. You ______eat so much next time..
If it________ , I will go to the Central Park with my son this weekend.
---- Is thatpen? ----- No, It is eraser. A. a; a B. a; an C. /;an
---What’s on the desk? — There are two . A. pencil B. dictionary C. rulers
If(如果) this is your backpack, please call Ann 32467589. A in B. at C. of