He found it increasingly difficult to read，________ his eyesight was beginning to fail.
| A．though | B．for | C．but | D．so |
With the school rules _____ by the students, the school has taken on a new look.
| A．respected | B．respect | C．were respected | D．respecting |
In the last twenty years, seven Canadian scientists _____ the Nobel prize!
| A．won | B．had won | C．was winning | D．have won |
We all like the photographs _____ by our teachers.
| A．were taken | B．taken | C．taking | D．to take |
--- What’s the weather like?
--- Pretty hot and wet in the summer, but it _____ be quite cold in the winter.
| A．may | B．can | C．must | D．should |
No dictionaries can _____ all the English idioms.
| A．say | B．tell | C．show | D．cover |