It is announced that _____ $20,000 reward will be offered for ______ return of the stolen sculpture.

A. a; the         B. 不填; the          C. a; a         D.不填；a

Directions: Complete the following passage by using ONE word that best fits the context (8 points).

Dear Professor Liu Kai,

I want to thank you for offering me such useful advice during my research. I have completed my article about advertisements, and I’m quite satisfied    58    it. It has just been published on our school website. I never knew that advertisements were so interesting! The information I found will really help me to educate others. I hope that after they    59    my article, my schoolmates will understand that PSAs    60    intended to educate us about public welfare issues, and    61    commercial ads are meant to promote products or services. Before our talk, I did not think very much about how an advertiser might be trying to trick customers    62    buying a    63    or a service. Now I think I will be much smarter about what things to buy. Even if there are lots of exciting images and persuasive language. I will remember to think about the things I buy. I will also pay a    64    more attention to the nationwide public service ad campaigns because now I know how helpful they can be. I will encourage my friends    65     pay attention to them as well.

Thank you again for helping me find so much useful information!

Yours faithfully

Qian Lili

 Come and see me whenever ________.

       A. you are convenient                                   B. you will be convenient

—What do you think of their marriage?

   —______, if I were Kate, I would not marry him.

     A. Generally speaking       B. I have no idea  [    

C. To be honest                    D. To my surprise

 It was the largest experiment we had ever had; it _____ six hours.

　　A. ended  B. finished  C. prolonged  D. lasted

The two dogs started to fight, so we tried to _____ them.

　　A. split    B. separate    C. tear    D. divide

After dinner the minister made a short _____ to the guests.

　　A. delivery  B.pronunciation  C.conversation D. speech

 The current political _____ of our country is favorable for foreign investments.

　　A. climate    B. weather    C. state    D. occasion

 A successful scientist needs _____ if he wants to make hypothesis (假設(shè)) of how processes work and how events take place.

　　A. permission     B. penetration 　C. imagination    D. convention

 John always tries to _____ people who are useful to him professionally.

　　A. develop B. provoke C. correspond  D. cultivate