Wilma became the first American woman to win three Olympic gold medals in track, ________ made her mother very proud.
| A．it | B．that | C．which | D．this |
—That must have been a lot of work.
—Yeah, it ________ us three days to finish it.
| A．takes | B．had taken |
| C．took | D．was taking |
Australia is one of the few countries ________ people drive on the left.
| A．where | B．that |
| C．when | D．which |
Three of the town's factories have closed down ________ the space of a year.
| A．among | B．after |
| C．beyond | D．within |
The old couple used to live deep in the countryside, without easy ________ to shops.
| A．approach | B．access |
| C．transport | D．convenience |
It is ________ challenge for graduates to get ________ job as unemployment is high nowadays.
| A．the；不填 | B．a；不填 |
| C．a；a C | D．不填；the |