(2016•盐城市)We must do everything we can ______...

(2016•盐城市)We must do everything we can ______waste water from running into rivers .

A.prevent B.prevented C.preventing D.to prevent

九年级英语单选题简单题查看答案及解析

(2016•盐城市)We must do everything we can ______waste water from running into rivers .

A. prevent　　 B. prevented　　 C. preventing　　 D. to prevent

九年级英语单选题简单题查看答案及解析

—Our mother river has been polluted heavily.

—We must do everything we can___________ waste water from running into rivers.

A. keep　　　　　　　 B. kept　　　　　　　　 C. to keep　　　　　　 D. keeping

九年级英语单项填空中等难度题查看答案及解析

We must do everything we can 　　　　 waste water from running into rivers.

A.keep B.kept C.to keep D.keeping

九年级英语单选题中等难度题查看答案及解析

We must do everything we can 　　　　 waste water from running into rivers.

A. keep　　 B. kept　　 C. to keep　　 D. keeping

九年级英语单项填空中等难度题查看答案及解析

We should do everything we can_____water.

A.to avoid wasting B.avoid wasting

C.to avoid to waste D.avoid to waste

九年级英语单选题中等难度题查看答案及解析

—Look at the sign!

—Oh, I see.We _______ waste water.

A. can           B. must             C. mustn’t          D. needn’t

九年级英语单项填空中等难度题查看答案及解析

We should do anything ____ to stop the factories ___ waste water into rivers.

A. as well as we can, from pouring　　 B. as well as we can ,pouring

C. we can,　 pouring　　 D. we can, to pour.

九年级英语单选题中等难度题查看答案及解析

We must do everything we can _____ our earth cleaner and safer.

A. made　　　　 B. to making

C. make　　　 D. to make

九年级英语单项填空中等难度题查看答案及解析

We must do everything we can ________ our earth cleaner and safer.

A. made　　 B. to making　　 C. make　　 D. to make

九年级英语单项填空中等难度题查看答案及解析