—Are you classmates? — No, we go to different ____________.
| A．school | B．a school | C．schools | D．school’s |
Remember the post office and buy some stamps for me, won’t you?
| A．to go | B．going |
| C．to going to | D．to go to |
There are so many kinds of radios in the shop. I can’tdecide .
| A．to buy what | B．to buy which |
| C．what to buy | D．which to buy |
He feels likethe Internet day and night. Tell him not to do it again.
| A．search | B．to search |
| C．searching | D．searches |
The little boy is sleeping. Youmake noise here.
| A．had better not to | B．would better not |
| C．had better not | D．would better |
He about three thousand words in the past three years.
A. has learned B learned
C. was learning D. had learned