—What are you mailing, Ryan?
—A textbook __________ a new method of teaching physics. I want my friends to take a look at it.
| A．is based on |
| B．based on |
| C．basing on |
| D．which based upon |
At last they all the debts which had been their heavy burden for ten years.
| A．paid for | B．paid off | C．paid back | D．paid out |
His lost eyesight was by his ever sharpening sense of hearing.
| A．made of | B．made use of | C．made up of | D．made up for |
The final examination is coming up soon. It’s time for us to our studies.
| A．get down to | B．get out | C．get back for | D．get over |
In some western countries, demand for graduates from MBA courses has .
| A．turned down | B．turned over | C．fallen down | D．fallen over |
I had to because someone else wanted to use the phone.
| A．give up | B．put up | C．hang up | D．ring up |