28、The doctor suggested he _____ with a serous disease and that he ___ to hospital at once.

A be infected ; be sent                                     B was infected ; be sent

C should be infected ; was sent                        D be infected ; was sent

27、

As a student, you should try to _____ being late for your class.

A. prevent             B. refuse                      C. avoid                D. punish

26、_____ Hebei-based Sanlu Group, the firms whose products are contaminated(polluted) include such dairy(milk) giants as the Yili and Mengniu groups.

A. In addition             B. Except                    C. But                   D. Apart from

25、The girl looked at me with a _______expression. Maybe the problem was quite ______.

      A. puzzled; puzzling                                  B. puzzling; puzzled 

      C. puzzled; puzzled                                   D. puzzling; puzzling

24、More people choose to do the shopping in a department store as it offers a great _______ of goods.

       A. variety                     B. mixture                    C. kind                  D. combination     

23、_________the piano, someone suddenly knocked at the door.

   A. Playing              B. When I was playing                          C. Repairing               D. Examining

22、As the noises are _______ of big cities, some people prefer to live in the countryside.

A. peculiar            B. particular           C. special          D. characteristic

21、

--- Will you go and attend her party?     

--- No,_________.

A. even though invited to                          B. even is invited 

C. as is not invited                                   D. unless being invited to go

20、The good news that Shenzhou Ⅶ _______ three astronauts had been sent into space ______ the world.

A. carrying; spread throughout                   B. carries; was spread in

C. carrying; spread in                                D. carried; has been spread out

19、I found______ hard______ the usage of the last word in this sentence.

A. it; to explain to you                             B. it; explaining you 

C. that; to explain all of you                     D. it is; explain for you