So sudden __________ that the enemy had no time to escape.
| A．did the attack | B．the attack did |
| C．was the attack | D．the attack was |
Her husband and she are now at work on a new dictionary ______ next year.
| A．to publish | B．being published | C．published | D．to be published |
Only in recent years ______ to realize the importance of wildlife conservation.
| A．do people begin | B．have people begun |
| C．people have begun | D．people begin |
Many people firmly believed ______ a healthy lifestyle can improve the quality of life.
| A．that | B．if | C．how | D．why |
----Do you have any problems if you ______ this job?
----Well, I’m thinking about the salary…
| A．offer | B．will offer | C．are offered | D．will be offered |
More and more people are looking forward to ______ the Expo in Shanghai.
| A．visit | B．visiting | C．visited | D．be visited |