Some day in the future, you shall what you have done.
| A．pay for | B．pay off | C．pay back | D．pay |
The young man，who by then ___ admission to university，decided to do some part-time jobs to gain more practical experience．
| A．gained | B．was gaining | C．has gained | D．had gained |
We could hardly believe what she says because she is____ ____changing her mind.
| A．regularly | B．steadily | C．eventually | D．constantly |
—When can I use your computer?
—Never! ________should you touch it.
| A．At no time | B．At some time | C．At any time | D．At one time |
As a film star she was a success, but as a wife she was ________ failure, so their marriage ended in ________ failure.
| A．/; / | B．/; a | C．a; a | D．a; / |
---I need to advertise for a roommate for next term.
---_______ ? Mary is interested.
| A．Why bother | B．Why not | C．So what | D．What for |