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() 4. 一Have you   “Zhang Lili”？

       —Yes,she is the most beautiful woman teacher in China.

   A. heard of   B. heard from   C. heard out   D. heard up

() 3. The man tried several times to start the car,and he succeeded.

       A. in the past   B. in the end   C. at first   D. at once

() 1. If there no buying and selling of animals,there will be no killing in nature.

   A. is   B. will be   C. has   D. will have

() 2. 一I'm sorry,sir. Fve made a lot of mistakes in the exam.

       —Never mind.   , the exam is a little difficult.

 A. In all   B. First of all   C. After all   D. Above all

15.Recently,scientists have found that dogs are (smart) than cats.

14.Nothing can prevent us from (realize) our dreams.

13.Many people do not know the (important) of robots.

12.The (develop) of science has changed our world a lot.

11.Well done!You have worked out all these physics problems (correct) .

10.That city is (build) a new library for the blind now.