_________ the progress of science and technology, the discomfort of old age will no doubt always be with us.
| A．As for | B．In addition to | C．Except for | D．In spite of |
The policeman was ________ abusing his power when performing his duty, but it hasn’t been ______ yet.
| A．charged with; confirmed | B．blamed for; approved |
| C．assessed ; proved | D．accused of; proved |
Only through constant practice can the ability of using a foreign language be _______.
| A．earned | B．acquired | C．gained | D．achieved |
She ________ on her work so much that she didn’t notice that a crowd of people had _______around her.
| A．focused; focused | B．fixed; gathered |
| C．concentrated; concentrated | D．carried; collected |
The doctor, ________ by several nurses, successfully performed the difficult operation on the patient.
| A．aided | B．assisted | C．helped | D．guided |
People tend to live more happily and longer if they are ________ about life.
| A．pessimistic | B．enthusiastic | C．optimistic | D．terrific |