You are a student of ________ history Can you tell me something about ________ history of the Great Wall?
| A．/, the | B．the, / | C．/, a | D．a, / |
—I'll call you ______ I arrive in Shenzhen．
—Thanks, and good luck．
| A．while | B．until | C．as | D．once |
Both Class 3 and our class won't be able to finish the work unless they ___ each other.
| A．team up with | B．come up with | C．put up with | D．catch up with |
Why ____ to go abroad to study when there are so many good universities at home?
| A．imagine | B．bother | C．consider | D．prevent |
Advertising can influence consumers' moods, ______, in turn, can influence consumers' reactions to products.
| A．that | B．which | C．where | D．when |
—I'm trying to find yesterday's newspaper. Have you seen it?
—I'm afraid that I ______ it away. I thought you had finished reading it.
| A．threw | B．had thrown | C．throw | D．will throw |