The rivers have __________，so they will have to spend much money irrigating the crops.
| A．dried up |
| B．built up |
| C．broken up |
| D．gone up |
This is the very reason ______ he gave for his coming late to the meeting.
| A．that | B．which | C．as | D．why |
Some children are too selfish today. They should be taught to _____things with others so that they will show concern for others.
| A．show | B．give | C．share | D．enjoy |
Some people would rather ride bicycles as bicycle riding has _____of the trouble of taking buses.
| A．nothing | B．none | C．some | D．neither |
--Do you have any trouble _____the work?
---No． in fact we have finished it already．
| A．finishing | B．to finish | C．finish | D．finished |
________ large number of people think ________ truth has been hidden on purpose.
| A．A; / | B．The; / | C．A; the | D．The; the |