______of the water_____polluted. We must try ...

_____ of the water _____ polluted. We must try to protect our environment.

A. Two third; are　 B. Two third; is　　         C. Two thirds; are　　     D. Two thirds; is

九年级英语单项填空中等难度题查看答案及解析

_____ of the water _____ polluted. We must try to protect our environment.

A. Two third; are  　　 B. Two third; is   　

C. Two thirds; are    D. Two thirds; is

九年级英语单项填空简单题查看答案及解析

______of the water_____polluted. We must try to protect our environment.

A.Two third; are　　 　　 B.Two third ; is　　

C．Two thirds; are　　　　 D. Two thirds ; is

九年级英语单项填空简单题查看答案及解析

We must protect water from being _________, because it’s the source of life.

A. polluted　　　　　　　 B. provided

C. finished　　　　 D. punished

九年级英语单项填空简单题查看答案及解析

_____ will be less pollution if we try our best to protect the environment.

A. It　　 B. There　 C. That　　 D. This

九年级英语单项填空中等难度题查看答案及解析

The air pollution is serious, ________ we must try our best to reduce it.

A. so　　　　　　 B. or　　　　　　 C. if

九年级英语单项填空中等难度题查看答案及解析

We must try our best ________ pollution ________again.

A. to stop; happen

B. to stop; from happening

C. stopping; happening

D. stopping; happen

九年级英语单选题中等难度题查看答案及解析

We must try our best to stop pollution ______ a low-carbon(低碳)life.

A. from living    B. to live     C. living     D. live

九年级英语单项填空困难题查看答案及解析

We must _______ to help the out of trouble.

A．try our best    B．try your best

C．try    D．trying

九年级英语单项填空中等难度题查看答案及解析

The water is _____. We must be careful of ______.

A. pollute, pollute　　 B. polluted, polluted　　 C. polluted, pollution　　 D. polluting, pollution

九年级英语单选题困难题查看答案及解析