15、Can you make a sentence to ______ the meaning of the phrase?

A. show off                  B. turn out                    C. bring out                  D. take in

16、― What does the sign over there read?

― “No person ______ smoke or carry a lighted cigarette，cigar or pipe in this area.” 

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

17、The boss ______ department Ms King worked ten years ago look down upon women. 

    A. in which 　　　 B. in that　　　 C. in whose　　　 D. whose          

18、 One of the consequences of our planet's being warming up is a(n) ______ in the number of natural disasters.    

 A. result         B. account       C. reason         D. increase

19、

The management of computer network is really beyond my      , but I can get useful information from it .

   A. catch                  B. grasp                  C. snatch              D. understand

20、

―Why did you eat your words, Billy?

―Sorry, dear. But I  really forgot where I was ______ to meet you.

A. demanded     B. imagined        C. supposed         D. guessed