What a pity! I ______ in Hong Kong for three more days, but something urgent needed to be handled back home.
| A．must have stayed | B．could have stayed | C．may have stayed | D．needn’t have stayed |
It is in Huizhou ______ you’re going to pay a visit to ______ this kind of TCL TV set is produced.
| A．that; which | B．where; that | C．/; where | D．/ ; that |
After working until midnight for two weeks, he finally ______ and had to stay in the hospital.
| A．broke up | B．gave in | C．broke down | D．gave up |
To make members of a team perform better, the trainer first of all has to know their ______ and weaknesses.
| A．strengths | B．benefits | C．techniques | D．values |
Jack would like to go to the cinema with dad, but the film is ______ for adults only.
| A．admitted | B．promised | C．intended | D．permitted |
He made up his mind to devote his life ______ the river ______ polluted.
| A．to prevent; to be | B．to prevent; from being |
| C．to preventing; to be | D．to preventing; from being |