The heavy smoker has decided to _____ smoking, for he knows smoking _____ his health.
| A．cut down, is harmful to | B．cut up, does harm to |
| C．cut off, is harmful for | D．cut down, does harm for |
8、When and where to go for the on-salary holiday ______ yet.
| A．are not decided | B．have not been decided |
| C．is not being decided | D．has not been decided |
7、Every possible means ______ to prevent the air pollution, but the sky is still not clear.
| A．is used | B．are used | C．has been used | D．have been used |
6、Books of this kind ______ well.
| A．sell | B．sells | C．are sold | D．is sold |
5、E-mail, as well as telephone, ______ an important part in daily communication.
| A．is playing | B．have played | C．are playing | D．Hoped |
4、----“Each of the students, working hard at his or her lessons, _____ to go to university.”
----“So do I.”
| A．hope | B．hopes | C．hoping | D．Hoped |