The traffic on the main streets has a longer green signal than ________ on the small ones.
| A．one | B．this |
| C．that | D．it |
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 |
It was his wife___ left him without saying goodbye.
| A．who | B．which | C．when | D．in which |
Is ____three hours ____ the boy ___family is poor to come to school on foot?
| A．it ;that; whose | B．it; that it takes; whose |
| C．it for ;that it takes; whose | D．it; when ;that |