_____ my cousin is very young, _____ she can help with the housework.
| A．Once; 不填 | B．Though; but |
| C．Although; 不填 | D．不填；不填 |
According to the information from the airline, a small sinking part of the runway of the airport is _______ for the accident.
| A．to blame | B．to be blamed | C．to blaming | D．to be blaming |
Obviously the measures taken by the local government have_______ the solution to drinking water problems in this region.
| A．contributed to | B．referred to | C．turned to | D．devoted to |
--Do you know when the Chinese custom_________ from?
--It's hard to say. But its characteristics__________ the Tang Period.
| A．began; prove | B．started; show | C．dates; suggest | D．is; appear |
Paper bags produced every year are ______ the world’s production of vehicles.
| A．as three times heavy as | B．three times weight of |
| C．three times the weight of | D．three times as heavier as |
His spare time is made full use_______ law.
| A．to study | B．study | C．of studying | D．of to study |