The pupils___busily when Mr Brown went to get a book he___in the office
| A．had written;left |
| B．were writing;has left |
| C．had written;had left |
| D．were writing;had left |
I failed in the examination last term and only then ____the importance of study.
| A．I realized | B．I had realized | C．had I realized | D．did I realize |
—Why don’t you take some exercise? Sitting before the computer is bad for your health.
---________, but I have to finish my work on time.
| A．Sorry, I won’t listen to you | B．I don’t think so |
| C．Thank you for your kindness | D．It’s none of your business |
Nobody but you _________ able to persuade him to give up that stupid plan.
| A．are | B．were | C．is | D．can be |
People have to _________ lots of hardship before they succeed.
| A．put up | B．come to terms with | C．enjoy | D．do with |
More natural resources should be _______use of to meet the increasing need of energy.
A putB broughtC takenD made