假如你是李华，你的笔友Tim给你发了一封电子邮件，向你了解这个暑假的情况。你给他回复，告诉他你去上海参加了世博会志愿者的服务工作。请参照表格中的提示，给Tim写一封邮件。

注意：

    1．邮件的开头和结尾已为你写好。

2．词数不少于100。

3．参考词汇：上海世博会the Shanghai Exposition  北京馆Beijing Pavilion

Dear Tim,

I’ve received your email, asking me about the summer vacation. Now let me tell you something exciting.

I hope you can see it for yourself.

Fondly Yours,

Li Hua

—Hi honey, are you okay? You look a little pale．

   —________．I am too tired these days!

A．Not at all      B．Don't mention it     C．Go ahead    D．Forget it

Liu Jialing won ___ Best Actress Award for her role at ___ 30th Hong Kong Film Awards．

   A．the,/             B．a, the                         C．the, the           D．/,the

—Mom, can I have that transformer?

   —Behave yourself and you____ have it．

   A．could          B．shall                            C．must               D．may

—Happy Birthday, Ken! Did you invite Jason?

   —Yes, but he _____ a meeting in New York otherwise he wouldn't be absent from my birthday party．

   A．is attending     B．has attended                         C．was attending    D．attended

．You'd better get the problem solved as soon as possible ______ it becomes out of control．

   A．when              B．before           C．since            D．unless

Look out! Keep away from the house, _____ the roof is under repair．

   A．whose             B．which            C．of which         D．where

_____ on everyday practice, progress in English is a goal which can be achieved．

    A．Based           B．Basing           C．Having based     D．Being based

While the police have already done a lot of investigation, much evidence ___    __.

    A．is remaining to be confirmed                             B．remained to be confirmed

    C．is remained to be confirmed         D．remains to be confirmed

Recently a new social issue has been brought to everyone's attention ___   __food additives are abused．

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