The humans are destroying nature day by day, ________ of course, will cause severe punishment from it sooner or later.
| A．who | B．when | C．on which | D．which |
According to the United Nations, an aging society refers to one ____ 10 percent or more of the population is over 60, or 7 percent or more is over 65.
| A．where | B．when | C．which | D．that |
I have no money, so a new bicycle is ____.
| A．out of the question | B．out of question |
| C．without question | D．beyond question |
It was strongly recommended that he ____ a holiday to relieve pressure.
| A．took | B．takes | C．take | D．could take |
He keeps in the safe $3 million _____ of diamonds.
| A．value | B．worth | C．price | D．cost |
---- If he does you a favour, you should do him a favour.
---- I can’t agree more. ____.
| A．One good turn deserves another | B．Justice has long arms |
| C．One false move may lose the game | D．Lies have short legs |