About 20 million people in the world have no enough safe drinking water．
So we should ______ how to deal with the problems of water．（ ）
A．put onB．look after
C．think aboutD．get on with
Could you tell me tomorrow？
It will be sunny． （ ）
A．what will the weather be like
B．what the weather will be like
C．when will the weather be sunny
D．when the weather will be sunny
To make rivers than before， everybody is supposed to protect them． （ ）
A．dirtyB．dirtierC．cleanD．cleaner
Friends are like books． You don't need a lot of them they are good． （ ）
A．orB．andC．as long asD．as soon as
【知识点思维导图】
【典例分析】
______ special classes we had! We have learned a lot about paper cutting． （ ）
A．WhatB．What aC．How aD．How
The English Speech Competition the best in her． As a result， she is more active now． （ ）
A．checked outB．tried out
C．left outD．brought out