Paper produced every year is the world’s production of vehicles.
| A．the three weight of |
| B．three times the weight of |
| C．as three times heavy as |
| D．three times as heavier as |
After many years’ hard working, his parents managed to ________ the debts for his education at university.
| A．pay for | B．pay back | C．pay off | D．pay out |
Most students have little difficulty ________ college life.
| A．to adapt | B．adapting | C．adapting to | D．adapted to |
The man was ________ to six years in prison for treating his wife cruelly.
| A．condemned | B．arrested | C．accused | D．assumed |
I couldn’t ________ to her. The line was busy.
| A．go by | B．go around | C．get in | D．get through |
It is difficult to ________ one twin from the other. They almost don’t ________ from each other.
| A．differ; distinguish | B．Distinguish; different |
| C．distinguish; differ | D．tell; different |