3. 他每星期去听两次关于外太空物理方面的讲座。(go to a lecture)

2. 他是公认的大歌唱家。(be known as)

1. 能够代表我们班全体同学在这里讲话，我感到非常幸运。(feel lucky to)

13. They want to see how civilized she can ________.

　A. experience　　 B. change　　　　　　　 C. develop 　　　　　 D. become

12.I find the _____ of buildings _____ under the sand.

　A. remaining; buried　　 B. remainders, bury

　C. remains; buried　　　　　　　 　 D. remains, burying

11.A society arranged ______ several students _____ an expedition.

　A. by; to go on　　 B. for; go on　　　 C. by; going on　 D. for; to go on

10. The lady ______ herself Mary was the hostess of this party.

　A. called　　　　　　　 B. who was called　 C. calling　　　　　　 D. was called

9. The evidence was gradually covered ____ by the heavy snow that night.

　A. with　　　　　　　　 B. in　　　　　　　　　　　　　　 C. over　　　　　　　　 D. up

8. Mr. Brown is a world-famous professor who is ____ in experience.

　A. wealthy　　　　　 B. rich　　　　　　　　　 C. well off　　　　　 D. wealth