Einstein was a great scientist. He did a lot for human rights and progress.
| A．no more than | B．not more than |
| C．more than | D．as much as |
(2013·重庆模拟)—When did your brother begin to show his interest in medicine?
—It was a Saturday he noticed his classmate experimenting on a frog in the lab.
| A．that | B．what |
| C．when | D．which |
Last Sunday I climbed to the top of the hill near my home, I could see half of the city.
| A．that | B．where | C．which | D．there |
It is exactly the area racial conflicts arise now and then.
| A．where | B．that | C．which | D．why |
Encouraged by my science teacher, I set about my studies on developing my product, I hope I will succeed in applying for a patent(专利权).
| A．with whom | B．to whom |
| C．through which | D．for which |
Three minutes later, more than ten policemen turned up at the spot the accident happened.
| A．which | B．what | C．where | D．that |