The children went back home from the grammar school, their lessons ________ for the day.
| A．finishing | B．had been finished |
| C．finished | D．had finished |
Teachers have to constantly update their knowledge in order to maintain their professional __________.
| A．consequence | B．independence |
| C．competence | D．intelligence |
I don’t like fish, so I ________ eat it unless I was extremely hungry.
| A．needn’t | B．shouldn’t |
| C．can’t | D．wouldn’t |
I have no idea ____________ measures the government will take to stop the river from being further polluted.
| A．which | B．what | C．that | D．whose |
Scientists are convinced __________ the positive effect of laughter _________ physical and mental health.
| A．of; at | B．by; in |
| C．of; on | D．on; at |
The little girl __________ the money for herself, but she __________ it away.
| A．could have used; gave | B．would use; gave |
| C．could have used; had given | D．would use; had given |