A low-carbon(低碳) lifestyle has an effect our daily life. People are paying more and more attention to energies these days.
| A．in; save | B．in; saving | C．on; save | D．on; saving |
Most of my classmates prefer ______to______ to school.
| A．riding, walking | B．by bike, on foot | C．to ride, walk | D．ride, walk |
I ____ go to bed____ my mother came back home.
| A．won’t, until | B．didn’t, until | C．will, until | D．/, when |
--- Would you mind speaking more slowly. I can hardly ________ you.
---_________________.
| A．read, Of course | B．follow, Of course not |
| C．miss, Ok | D．match, Good idea. |
---The fire was finally __________. Unfortunately, 10 people lost their lives.
--- I hope the accident like this __________ happen.
| A．put up, not to happen | B．put away, not happen |
| C．put down, not happens | D．put out, won’t happen |
---When can we use this lift?
---Not until it____________ next week.
| A．will repair | B．is repaired | C．will be repaired | D．repairs |