Don’t give up halfway, Andy. You’ll succeed _______ if you keep on working like this.
A. in turn B. on time C. in time D. by accident
He made up his mind to devote his life _______ pollution _______ happily.
A. to prevent; to live B. to prevent; from living
C. to preventing; to live D. to preventing; living
After five hours’ drive, they reached _______ they thought was the place they had been dreaming of.
A. that B. where 
C. which D. what
The news that he failed in the exam _______ his unhappiness this morning.
A. accounted for B. accounting for C. had accounted for D. to account for
The great _______ of my plan is that it’s so cheap compared to the others.
A. power B. strength C. energy D. force
The rescuers _______ to work as soon as they arrived at the spot of the accident.
A. set out B. set off C. set up D. set in
