假如你是李华，你的朋友Peter给你发来邮件，询问你校正在开展的“低碳活动”。根据要点写回信。

（1）尽量乘公交车、走路或骑车

（2）使用电子贺卡

（3）双面使用纸张

（4）节约用电、用水。

活动主题是：行动改变世界（Act On the Earth）。

要求：100词左右；首句已给出。

Dear Peter,

With regard to your enquiry, I am here to tell you more details about the low carbon programmes that are right now taking place in my school.

--- Excuse me, can you tell me where the nearest bank is, please?

---______ Oh yes! It's past the office, next to a big market.

A．Mm, let me think.                         B．Oh, I beg your pardon?

C．You're welcome.                          D．What do you mean?

--- I wonder if I could possibly use your car for tonight?

---______. I'm not using it anyhow.

A．Sure, go head        B．I don't know          C．Yes, indeed           D．I don't care

It was not immediately obvious _____ water was to be fundamental to the development of life.

A．what                    B．that                      C．when                   D．why

_____ is even more important is that as the earth cooled down, water began to appear on its surface.

A．As                 B．That                   C．What                   D．Where

They multiplied and filled the oceans and seas with oxygen, _____ encouraged the later development of early shellfish and all sorts of fish.

A．that                      B．where                   C．when                   D．which

Walking does need a bit of practice _____ gravity has changed.

A．as if              B．in their turn            C．now that             D．as a result of

We watched, amazed as fire _____ on the outside of the spaceship as the earth’s gravity increased.

A．broke up               B．broke out              C．broke in                D．broke away

The thought _____ they could cross the whole continent was exciting.

A．that                      B．what                    C．which                  D．why

People say it is Canada’s most beautiful city, _____ by mountains and the Pacific Ocean.

A．surrounding          B．surround         C．to surround         D．surrounded