Last year the number of students who graduated with a driving license reached 200,000, a(n) ________ of 40,000 per year.
A.amount of | B.quantity |
C.average | D.number |
In Britain,sales of cigarettes have been reduced __________ 30% in the past ten years.
A.for | B.to | C.from | D.by |
Whenever you are to walk on the ice,__________ that it is solid and safe enough.
A.examine | B.check | C.try | D.make |
It is a __________ that you missed such a wonderful concert.
A.shame | B.pity | C.regret | D.mistake |
Because of the snow,many parts of the countryside are only _________ by helicopter.
A.available | B.appropriate | C.accessible | D.achievable |
I tried hard to get some information about the new technology out of his mouth,but he remained __________.
A.quiet | B.secret | C.silent | D.calm |