According to some doctors, one of the ways to prevent us from growing old is to make sure that our brains get enough___.
A. performance B. exercise C. experience D. sport
We are faced with the necessity to recognize that having more people implies a lower standard of living.
A. readily B. smoothly C. unavoidably D. deliberately
Although many people view conflict as bad, conflict is sometimes useful _______ it forces people to test the relative merits of their attitudes and behaviors.
A. by which B. to which C. in that D. so that
— I phoned you at 7 yesterday evening but nobody answered.
— Oh, I ________ my dog in the park then.
A. walked B. was walking C. had walked D. would walk
Paris________ be a wonderful city but it’s not somewhere I’d like to live.
A. might B. would C. must D. can
A decline in electricity output forces industrial estates and cities to burn more coal and give out more carbon to _________ the shortfall.
A. make out B. make up C. bring out D. bring up
