–Can I get out at noon?
--No. Our school rules state that no student ____ be allowed out at noon, unless he has a request form.
| A．shall | B．will | C．must | D．can |
Not until all the fish died in the river ________ how serious the pollution was.
| A．did the villagers realize |
| B．the villagers realized |
| C．the villagers did realize |
| D．didn't the villagers realize |
His first book ______ last month is based on a true story.
| A．published | B．to be published |
| C．to publish | D．being published |
________by curiosity，he opened his wife’s notebook and began reading her diary.
| A．Driving | B．Being driven |
| C．Driven | D．Having driven |
________ the delayed flight will take off depends much on the weather.
| A．Why | B．When | C．That | D．What |
I________ along the street looking for a place to park when the accident________.
| A．went; was occurring | B．went；occurred |
| C．was going; occurred | D．was going; had occurred |