_________ hard, and you will pass the exam.
| A．Study | B．Studied |
| C．To study | D．Studying |
What___wonderful world it would be if all countries in the world could live in___peace with one another.
| A．a;\ | B．the;\ | C．a;the | D．the;the |
30. The man that people think is a black sheep in the city will ____ imprisonment.
| A．end up with | B．be ended up with | C．end up in | D．be ended up in |
29. These wild flowers are so special that I would do ____ I can to save them.
| A．as many as | B．that | C．as much as | D．Whichever |
28. – How did you get to the airport?
-- I got Tom ____ me there.
| A．drove | B．to drive | C．driving | D．Drive |
27. We haven’t settled the question of ____ it is necessary for him to study abroad.
| A．if | B．where | C．whether | D．That |