—It’s necessary ____ our environment(环境). —I agree with you. A．protect（保护）B．pro

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—It’s necessary ____ our environment(环境). —I agree with you.

A．protect（保护）

B．protecting

C．to protect

D．protects

答案

解析

it’s +adj+ to do sth表示做某事对某人来说怎样

举一反三

I really don’t know____________.

A．how to do

B．what to do

C．what should I do

D．how I should do

题型：不详难度：| 查看答案

Let’s go to Beijing ______ the Great Wall.

A．to look

B．watches

C．to visit

D．visits

题型：不详难度：| 查看答案

We need to learn __________ be polite when we make requests.
a. what to b. why to c. how to d. whether to

题型：不详难度：| 查看答案

_______ keep yourself safe, it is important _______ drive after drinking.

A．To, not to

B．/, not to

C．/, to not

D．To, to not

题型：不详难度：| 查看答案

Simon is _______to make us all _______．

A．enough funny；laugh	B．funny enough；laugh
C．enough funny；to laugh	D．funny enough；to laugh

题型：不详难度：| 查看答案