When you finish your work，don’t forget to put the tools back where they ．
| A．are | B．will be | C．were | D．had been |
Zhang Guoli ________ the public ________ his son’s misbehavior.
| A．apologized to, for | B．make an apology to, for |
| C．apologize for, to | D．made an apology for, to |
All of my teachers but the math teacher ______ he cheated in the exam.
| A．doubt that | B．doubts that | C．doubt whether | D．doubts whether |
The teacher told us that everyone has an important role ________in protecting the earth from________.
| A．to play; to pollute | B．to be played; to be polluted |
| C．to play; being polluted | D．to be played; being polluted |
When I enter this classroom, I always feel the ______ pressure of study, for I have so many opponents to compete with.
| A．invisible | B．invaluable | C．insensible | D．impolite |
Those who failed to get into the art exhibition ________ disappointed as many of the artists who should have appeared did not come.
| A．didn’t need feel | B．needn’t have felt |
| C．mustn’t have felt | D．couldn’t have felt |