I surveyed the paper again before I handed it over.
A. looked up
B. looked over
C. looked for
—Have you ever been to New York before?
—No. This is my first ______.
| A．call | B．vacation | C．visit | D．show |
—Attention, please. The plane has to be put ______ because of the heavy fog.
—Oh, bad luck! We have to wait now.
| A．on | B．away | C．up | D．off |
Could you tell me ______raise money?
A. I should how B.how I should C.how should I
We should make contributions ______ our environment.
A. to protecting B. to protectC. protecting
Mr. Lee for Taiwan for his holidays the day after tomorrow.
A. leaves B. is leavingC.leaving