The Bakers intend to buy a house but _____ must be within their power.
| A．they | B．one | C．it | D．which |
We laugh at jokes, but seldom __________ about how they work.
| A．we think | B．think we | C．we do think | D．do we think |
There is ___________ as a free lunch.
| A．not such thing | B．no such a thing | C．no such thing | D．such no thing |
He works as an engineer now, but he _____ on a farm for three years.
| A．has worked | B．worked | C．was working | D．had worked |
Wu Juping, ______ the most beautiful mother, is also popular with foreigners for her saving the baby _________ off the high building.
| A．honored; falling | B．honoring; falling | C．honored; fallen | D．honoring; fallen |
__________ to the left at the crossroads, and you will see the railway station on your right.
| A．Turning | B．If you turn | C．Turn | D．Having turned |