29、假设你是李华，你的美国朋友Chris给你发来e-mail，询问你校正在开展的“低碳生活”活动情况。请根据图画用英语写一封回信。
活动主题：行动改变世界
活动目的：倡导低碳生活
活动带来的影响或结果（考生自由发挥）。
注意：
1．词数120左右； 2．可适当增加细节，使行文连贯； 3．开头语已为你写好。
Dear Chris,
I’m happy to receive your e-mail asking about what we are doing to promote a low-carbon lifestyle.
Yours,
Li Hua
28、—How long has this bookstore been in business?
—_______ 1996．
A．After B．In C．From D．Since
27、I love to buy a new dress at a _______ at the Spring Festival．
A．discount B．bargain C．pay D．cost
26、I won’t have anything like that _______ in my class．
A．saying B．say C．said D．to say
25、Doing morning exercises _______ our health and we _______ it．
A．benefits to; benefit B．benefits; benefit from
C．benefits from; benefit D．benefits; are benefited by
24、I was just _______to go out when the telephone rang．
A．/ B．about C．likely D．off
23、She remains optimistic （乐观的）in spite of so much hardship she has _______ ．
A．gone through B．looked through
C．gotten through D．passed through
22、You can’t imagine ________ when they heard the news．
A．how they were excited B．how excited they were
C．how excited were they D．they were how excited
21、---Did you hear the quarrel just now?
---________ I did．
A．Simply B．Merely C．Indeed D．Really
