—I saw you and Tom in the library just now.
—Oh,we____several visitors around the school.
| A．were showing | B．showed |
| C．are showing | D．will show |
Mrs. Wang advised us _______ the math problem in another way.
A. solve B. solving C. to solve
You can imagine _________ strange it was!
A. what a B. how C, what
Do you know when the first train __________ in China?
A. was produced B. is produced C. Produced
Alice found _______ not easy to get a driver’s license.
A. itB. that C. This
If you meet some new words, you'd better ________ in a dictionary.
A．look out them
B．look up them
C．look them up