A. has heard from; thatB. was heard from; thatC. has be……

单项选择题You may use the room as you like () you clean it up afterwards.

A. so far as
B. so long as
C. in case
D. even if

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