22、We have to face the educational system _______ pressure was heavy.

A. which                      B. for which                 C. where                      D. that

21、The reason _______ he explained to us was quite simple.

A. why                        B. that                          C. how                         D. when

20、I don’t like ______ like that, which is very rude.

A. to be talked                                                 B. being talked

C. to be talked to                                             D. to being talked to

19、No one knows when such a custom first           ．

A．came into power                                               B．came into being 

C．came true                                                         D．came out

18、The road         and it will be finished by the end of next year．

A．is built                                                             B．is being built   

C．has been built                                                   D．was built

17、The company was willing to provide us with what we needed，       made us excited．

    A．what                   B．when                   C．which                    D．where

16、―John，which color do you like，red or blue?

―         ．I prefer to buy a yellow one．

      A．Either                 B．Both                    C．Neither                  D．All

15、The farmers use dogs to         their cows at night．

    A．take care              B．1ook up               C．watch over             D．turn to

14、―Would you like to come to my house for dinner tonight?

―          ，but I’m too busy．

       A．I’d like to                                                 B．I don’t like to   

       C．Never mind                                                 D．Good luck

13、        a study，people who often stay up too late are more likely to die of heart disease．

A．With the help of                            B．Because of   

C．According to                                D．As a result