Mr. Green is said _____ an experiment to prove the new method of solving the problem when young.
| A．to do | B．to have done | C．to be doing | D．to have been doing |
These new facts, together with other __________，prove the prisoner guiltless （无罪的）.
| A．impression | B．reality |
| C．symptom | D．evidence |
I don't think she is a nice woman; I am __________ her empty talk.
| A．grateful for | B．tired of |
| C．crazy about | D．concerned about |
Obviously, the parents' bad behavior will have a negative __________ on their children.
| A．affect | B．effect |
| C．effort | D．offer |
Teenagers __________ their health because they play computer games too much.
| A．have damaged | B．are damaging |
| C．damaged | D．will damage |
The hotel is always full of people because it offers a friendly __________ and personal service.
| A．surface | B．atmosphere |
| C．system | D．appearance |