My uncle lives ____ 105 Huanghe Street. His room is ____ the fifth floor.
| A．at;on | B．at;at | C．on;in | D．of;to |
This nationwide smog should serve as a reminder to all, indicating a high time that we____ on what we've done to the environment.
| A．have reflected | B．are reflecting |
| C．will reflect | D．reflected |
more effectively with others, more and more people equip themselves with a higher education.
| A．Compete | B．To compete |
| C．Being competed | D．Competing |
The new policy allows a couple to have a second birth____either is an only child.
| A．if only | B．on condition that |
| C．unless | D．until |
It’s crazy of you to spend more time playing computer games than you _______ studying.
| A．are | B．have |
| C．do | D．will |
--Do you think you can finish the project by five o’clock this afternoon?
---_______. I’ll be busy with my term paper all day.
| A．Not a little |
| B．Not a chance |
| C．Not a bit |
| D．Not to mention it |