15、Be careful next time．Let there ________ no mistake about it again．

A．be                          B．to be                      C．is                         D．will be

14、It rained for two weeks on end, completely ________ our holiday．

A．ruined                   B．to ruin                  C．ruining                 D．ruins

13、After the war, a new school building was set up _______ there had once been a theatre．

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

12、_______ breaks the law will have to face a serious punishment．

A．Anyone                 B．Those who            C．Anyone who         D．Who

11、I often have conversations with John over _______ phone, but keep in touch with Tom by writing _______ letters．

A．\; the                      B．\; a                       C．the; \                   D．the; a

10、This toy robot is the ________（最近的）craze all over the world．

二、选择题

（每空？ 分，共？ 分）

9、The woman scientists has ________（献身于）herself to protecting wildlife．

8、It makes no _______（差别）to me which side wins or loses．

7、There are many small things we can do to _______（减少）the pollution of the environment．