22. _____ computer has been proved to be _____ important aid in classroom teaching.
| A．The; an | B．The; the | C．A; the | D．A; / |
The first person was Tony Garcia from Colombia, closely followed by Julia Smith from Britain.
| A．to arrive | B．arriving | C．arrived | D．arrives |
People have always been curious how living things on the earth exactly began.
| A．in | B．at | C．of | D．about |
Zhang Ning managed to her injury to win the Olympic gold medal.
| A．prefer | B．overcome | C．injure | D．shock |
Up to now nobody able to do this better than Charlie Chaplin.
| A．is | B．has been | C．was | D．will be |
It was John we won the game.
| A．because; who | B．because of; whom | C．as; that | D．thanks to; that |