Nowadays it is difficult for people to find ________ work everywhere because ________ economic situation is very serious.
| A．不填；an | B．a; the | C．不填; the | D．a; 不填; |
Wind power is an ancient source of energy ____we may return in the near future.
| A．on which | B．by which |
| C．to which | D．from which |
Without the ____ of my friends, how could my company have lived through the hard times.
| A．admiration | B．assistance |
| C．admission | D．achievement |
___ with various research projects, that scientist can’t even find time to visit his parents.
| A．Occupying | B．Occupied |
| C．To be occupied | D．To occupy |
— Thank God you’re safe!
— I stepped back, just ____ to avoid the racing car.
| A．in time | B．in case | C．in need | D．in vain |
— Don’t worry, Mum. The doctor said it was only the flu.
—____! I’ll tell Dad there’s nothing serious.
| A．What a relief | B．Congratulations |
| C．How surprising | D．I’m so sorry |