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 |
—How did the fire_____?
--By a car accident.
| A．come about | B．come on | C．come to | D．come over |
In China, smokers have to face the reality that ______ people are dying of lung cancer.
| A．a great number of | B．a great deal of |
| C．a good many of | D．the number of |
Please tell me ______ you are getting on with your new classmates.
| A．whether | B．how | C．what | D．where |
Although we often send emails to each other, we have never seen each other ______.
| A．in my eyes | B．eye to eye | C．in my face | D．face to face |
I wanted to have a talk with her, but she ______ me and went away.
| A．upset | B．calmed | C．ignored | D．set |