You may use the room as you like () you clean it up afterwards.

单项选择题Eating better and eating less could be the () not only to avoiding cancer but also to living longer.

A. key
B. foundation
C. rule
D. importance

单项选择题So you have to leave. How nice it ______ if you ______ a bit longer.

单项选择题The play () next month aims mainly to reflect the local culture.

A. produced
B. being produced
C. to be produced
D. having been produced

单项选择题The policeman ran after the man and () him by the arm.

A. stopped
B. reached
C. shot
D. caught

单项选择题—I’ m surprised to hear that Sue and Paul have (). —So am I. They seemed very happy together when I last saw them.

A. broken up
B. finished up
C. divided up
D. closed up