A serious study of physics is impossible ________ some knowledge of mathematics.
| A．against | B．before |
| C．beyond | D．without |
Roads in this mountain area used to be ______; people found it hard to travel here.
| A．in poor conditions | B．in good condition |
| C．in poor condition | D．in a poor condition |
On May 30th, 2010, at _____World Table Tennis Championship, Ma Lin and Zhang Joke won the gold medal in men’s with ____score of 3:1.
| A．a; a | B．/; the | C．a; / | D．the; a |
They would not allow him _______ across the enemy line.
| A．to risk going | B．risking to going | C．for risk to go | D．risk going |
—Where did you see him for the first time?
— It was in the factory _________ we worked.
| A．that | B．where | C．which | D．when |
—why don’t we choose that road to save time?
—The bridge to it
| A．is being repaired | B．is repaired | C．has repaired | D．will be repaired |