—May I smoke here ?
—If you ____, choose a seat in the smoking section.
| A．should | B．could | C．may | D．must |
If you can’t trust your friend to have a relationship with another person you consider a friend, it’s a clear ______ of a problem in your friendships.”
| A．disappearance | B．symbol |
| C．symptom | D．settlement |
The video, Under the Dome, has rapidly pushed the public______about air pollution and encouraged people to join in efforts to make a difference.
| A．analysis | B．imagination |
| C．awareness | D．argument |
It is the superior intelligence and the use of language that distinguish man______ the other animals.
| A．with | B．among | C．between | D．from |
Nowhere else, as Tim’s sister said, ______ except the small garden in the backyard after school.
| A．would he go | B．he did go |
| C．had he gone | D．he has gone |
—What you’ve said sounds___, but can we really solve the problem in that way?
—It is worth a try.
| A．absurd | B．awful | C．reasonable | D．passive |