21、All of you ________ at the school gate! We’ll soon start.

       A. are gathering             B. will gather                C. have gathered           D. gather

20、We had quite many difficulties with our big-size classes, ________ how teachers can effectively help individual students is not the least.

       A. of which                  B. including                  C. besides                     D. beyond

19、Mr. Baker thinks his own inconvenience and _________ of his fellow colleagues are the only thing that the government should deal with.

       A. whoever                   B. someone                   C. that                          D. any

18、It’s one hundred dollars. Speeding and driving after drinking. You ______ me with that smell in   your breath.

       A. shouldn’t fool                                              B. mustn’t have fooled  

C. can’t fool                                                    D. couldn’t have fooled

17、The task required ________ did it ________ careful and brave enough.

       A. who; is                                                       B. whom; was                    

C. whomever; were                                          D. whoever; be

16、 The two presidents agree with each other on the whole, but much remains ________ at the following meeting.

       A. discussing                B. discussed                 C. to discuss                 D. to be discussed

15、The more one is _________ the English-speaking environment, the better he or she will learn the language.

       A. exposed to         B. filled in                     C. caught on                 D. kept up

14、Because I have a very important meeting to attend, I can’t come to see you this evening, _________ I’d like to.

       A. much as                   B. much so                   C. as much                   D. so much

13、 Temperatures in the United States ________ measured according to the Fahrenheit Scale, on which 32 degrees ______ the freezing point of water and 212 degrees the boiling point.

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

12、_____ running, learning English needs will.

       A. As with                    B. As to                        C. As for                      D. As if