It will be some years before some foreign doctors change the impression they have _____Chinese medicine, _____, in their opinion, is nothing but raw herbs and not effective at all in treating diseases.
| A．for; which | B．on; what | C．to; that | D．on; which |
It was until dark ___ he found ___ he thought was the correct way to solve the problem.
| A．that; what | B．that; that | C．when; what | D．when; that |
It was in the evening__we reached the little town of Winchester.
A that B. until C. since D. before
It was ____ my teacher worked ____ I work hard.
| A．where; that | B．where； where | C．that; that | D．that ;where |
It is the young man ___ looked for ___ caught the murderer.
A.that; who B.that; they C. they ;that D they ;which
It is on a winter night ___he spent with me last night.
| A．that | B．where | C．as | D．when |