Without permission, no one ______ let out the news.
| A．shall | B．should |
| C．is supposed to | D．is allowed |
—Should I lock the lab before I go home?
—__．I'll check it myself later．
| A．Go ahead | B．No problem | C．No hurry | D．Don't bother |
Thanks to our ___ schedule, we got our task accomplished ahead of time．
| A．active | B．flexible | C．positive | D．fixed |
—Have you heard that he was admitted into Beijing University?
—Is that true? And I'm glad that his efforts at last ___．
| A．took off | B．paid off | C．turned out | D．paid for |
With the rapid development of medical science, we ___ more new drugs used in the treatment of cancer．
| A．see | B．had seen | C．will be seeing | D．would see |
The teacher wants his students to know more about modern science and tries hard to develop a（n） ___ about nature among his students．
| A．curiosity | B．habit | C．ability | D．independence |