．A computer is so useful a machine ________ we can use everywhere．
| A．that | B．whic h |
C．as | D．what |
He got well-prepared for the job interview, for he couldn't risk ______ the good opportunity.
| A．to lose | B．losing | C．to be lost | D．being lost |
The doctor advised Vera strongly that she should take a holiday, but didn't help.
| A．it | B．she | C．which | D．he |
Children above 12 are able to take part in skiing or other activities _______for them.
| A．designed | B．designing | C．to design | D．having designed |
In the dark forests _________, some large enough to hold several English towns.
| A．stand many lakes | B．lie many lakes |
| C．many lakes lie | D．many lakes stand |
___ is no good ___ without doing anything.
| A．This...talking | B．It...to speak | C．It…talking | D．That...to say |