It was so cold that they kept the fire ________all night.
| A．to burn | B．burn | C．burning | D．burned |
Companies are struggling to find the right ________ between supply and demand, but it is no easy task.
| A．balance | B．process | C．equality | D．pattern |
After staying in hospital for long, the patient was advised to go to the sea
side to____ his health.
| A．take up | B．hold up | C．make up | D．pick up |
______, I think, the problems can be settled in no time.
| A．A bit more efforts | B．Keep up your spirits |
| C．If you double your efforts | D．Making greater efforts |
Play, often seen as____activity for kids, is still important in_________development of teenagers.
| A．the; the | B． an; the |
C．an; 不填 | D．the; 不填 |
Low-carbon lifestyle is of great benefit to improve the world
environment．can be enjoyed from it until you have a deep understanding of it，however．
| A．Something | B．Nothing | C．Few | D．Much |