It is said that sixty percent of all energy ________ in the world today is being lost as wasted heat.
| A．produced | B．producing |
| C．to produce | D．having produced |
The survey shows that if people cannot afford____ house, they will feel less content about ___life．
| A．the; the | B．a; / | C．a; the | D．/; the |
— I’ve been told that you are not content with your present job.
— Yeah. I am looking for a job _____ I can put my talent to good use.
| A．which | B．where | C．when | D．why |
. About one fourth of the families in the city have private cars and this number _____ to double in five years.
| A．is expecting | B．has expected | C．is expected | D．will expect |
. He put it firmly that in no case _______ give in to others on such matters.
| A．he would | B．would he | C．will he | D．he will |
Though severely _____, the band insisted on playing their music late at night as usual.
| A．being criticized | B．criticizing | C．criticized | D．to be criticized |