Over 20% of the students at that school _____ the habit of smoking, which is beyond imagination.
| A．is | B．are | C．has | D．have |
--- What time would you like me to this evening for the concert?
--- I think 6:30 will be OK.
| A．pick up you | B．call you for | C．call on you | D．come for you |
After ten years of construction, the old city has a new look.
| A．showed off | B．taken place | C．spread out | D．taken on |
He everything and found out where the trouble was.
| A．went up | B．went out | C．went over | D．went against |
Yesterday we learned some new words and now .
| A．think them about | B．think over them |
| C．think them over | D．think it over |
To increase the production, many factories have some new techniques.
| A．brought out | B．brought in | C．brought back | D．brought about |