I can't imagine therebe a shortage of water in Yunnan, the southwest of China where there
used to be adequate rain.
A. could B must C. might D. should
Instead of staying the same every day, Mary’s working hours are .
| A．limited | B．available | C．valuable | D．flexible |
My money . Could you please lend me some?
| A．has run out of | B．was running out | C．has run out | D．was run out of |
The boy was curious about how the waste paper was into a model kite.
| A．improved | B．united | C．transformed | D．mixed |
Not unti his fellows criticized him _______ to admit his mistake.
| A．does he begin | B．did he begin | C．began he | D．had he begun |
After taking part in several rounds of competition, the athlete won first prize.
| A．eventually | B．occasionally | C．frequently | D．usually |