We can’t do two things _____.
| A．all the time | B．on time | C．at times | D．at a time |
The sign 
means _________
| A．No parking | B．No right turn |
| C．You can’t turn left | D．No entry |
--- --Who won _______prize for the “Most Beautiful Nature”photography?
------______18-year-old girl.
| A．the; A | B．a; A |
| C．the; An | D．a; An |
We believe _______ we could finally go to a good senior high school.
| A．what | B．if | C．that | D．when |
—Linda, I called you this morning, but nobody answered the phone.
—I’m sorry. I ________ football with my friends then.
| A．play | B．played | C．am playing | D．was playing |
—Must we finish our homework today?
—No, you. Youfinish it the day after tomorrow.
| A．needn’t; must | B．mustn’t; can | C．needn’t; can | D．mustn’t; can |