. All the doctors in the hospital insisted that he ____ badly wounded and that he ____ at once.
| A．should be; be operated on | B．were; must be operated on |
| C．was; should be operated | D．was; be operated on |
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 |