3 . Americans eat _____________ vegetables per person today as they did in 1910.

A．more than twice	B．twice as many as
C．as twice as many	D．more than twice as many

4 . —        of volunteers will be needed for 2014 International Horticulture Exposition in Qingdao.
—Let’s go and         them.

A．Thousands; join	B．Thousand; be a member of
C．Three thousand; take part in	D．Thousands; be in

5 . It is reported that Americans eat too much protein every day, _______ as they actually need.

A．twice as much

B．as twice much

C．much as twice

D．as much twice

6 . —How often do you visit your grandpa?
—________.

A．Every other week	B．Two weeks
C．For two weeks	D．Every a few weeks

7 . ________ sleep every night is very important to teenagers.

A．A large amount of	B．Large quantities of
C．A good number of	D．A good many

8 . Trees were planted along the road ________. (Choose the one that is not proper for the blank.)

A．every two meters	B．every second meter
C．every other meter	D．every the second meter

9 . It seems there are 　　　 people out of work.Something must be done to create more employment.

A．a great many	B．a great many of
C．a great deal	D．a great deal of

10 . Only a ________ of the children are fond of doing housework while most of them enjoy playing games.

A．part	B．minority
C．few	D．most