We tried ________ the window, but it was still hot in the room.
| A．to open | B．opening | C．open | D．opened |
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 |
His sunburnt face is just like that of millions of Chinese farmers, whom he has struggled the past five decades.
| A．to; for | B．for; to | C．for; for | D．with; for |