He _____ his potential had it not been for his desire to meet new challenges.
| A．would never have realized | B．would never realize |
| C．never realized | D．had never realized |
The meal over, the managers went back to the meeting room to ______ their discussion.
| A．put away | B．take down | C．look over | D．carry on |
.I used to quarrel a lot with my parents, but now we ______ fine.
| A．look out | B．stay up | C．carry on | D．get along |
-----Are you happy with your new computer?
----- No, it is _______ me a lot of trouble.
| A．showing | B．leaving | C．giving | D．sparing |
You have to ________ a choice. Are you going to leave the job or stay?
| A．decide | B．get | C．do | D．make |
Roses are quite _____ flowers in English gardens.
| A．ordinary | B．common | C．usual | D．general |