—These things are not useful to anyone, are they?
—______. We can throw them away.
| A．Yes, they are | B．Yes, they aren’t |
| C．No, they aren’t | D．No, they are |
As a grassroots singer, she reads everything she can get hold of and catch every opportunity she meets up with so as to gain____progress.
| A．mild | B．widespread |
| C．steady | D． average |
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 |