Scientists are convinced __________ the positive effect of laughter _________ physical and mental health.
| A．of; at | B．by; in |
| C．of; on | D．on; at |
—Do you think Peter is free today?
—I don’t think so. Recently he bas been _______ the most of his time to prepare for the final examinations.
| A．making | B．planning | C．using | D．getting |
I think it ______ to let farmers have their own land. In that way, they can farm the lard by themselves, and food production will be higher.
| A．no good | B．no use | C．makes sense | D．makes contributions |
His parents wouldn’t let him marry anyone _______ family was poor.
| A．of whom | B．whom | C．of whose | D．whose |
_______ her illness, Millie did not come to school yesterday.
| A．Due to | B．Thanks to | C．Because | D．Owe to |
Traditional Chinese sports are similar to the Western sports _______ both are meant to improve people’s health.
| A．that | B．in which | C．in that | D．不填 |