2.　　　 With the test a_________,(临近) the atmosphere in the class is getting tense.

1.　　　 He wandered around Tibet for about twp months. His experience is u_______.(难以置信)

15.　　 A number of books ______ been stolen from the library since the beginning of this term and the number _____ as large as 500.

A. have; are　 B. has; is　 　　　 C. has; are　 　 D. have; is

14.　　 He is famous both ______ a novelist and a poet but he is more famous ______ his novels.

A. for; as　　 　 　　 B. with; for　 　 C. as; for　 　 D. like; as

13.　　 He is not ______ to be the kind of man who could have done such a rude thing to a lady. You must have been mistaken.

A. likely　　 　　　 B. possible　 　 C. probable　 　 D. maybe