—_______ I return your English book?
—No, you _______.
A. Must; mustn’t
B. Could; can’t
C. Must; needn’t
They are doing much better ___ Math ___ the help of their teacher.
| A．in; with | B．in; at | C．with; with | D．on; at |
South Korea is ___ the east of China.
| A．in | B．to | C．on | D．at |
The pupils will go to the museum ___ foot and come back ___ bus.
| A．by; in | B．on; by | C．on; on | D．by; by |
—There are so many cars on the road. You should obey the traffic rules and go ___the zebra.
—OK. I will follow your advice.
A. cross B. across C. through D, around
—There is a large beautiful bridge ___ the river in this town
| A．over | B．on | C．under | D．beneath |