“You ______ your teacher for help. He is kind-hearted.” “Yes. A whole day _______.”
| A．can ask, will waste |
| B．must have asked, had wasted |
| C．could have asked, was wasted |
| D．shouldn’t have asked, would be wasted |
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 |