19、--Why do we use a ________ bag to go shopping?

--Because it can ________ pollution．

A．clothes：reduce                         B．cloth；recycle

C．clothing；cause                           D．cloth；reduce

18、You ________ the exam but you failed this time．

A．were supposed to pass                      B．supposed to pass

C．were supposed passing                        D．supposed passing

17、--Why are you ready ________ your study in America?

--Because English is spoken ________ the first language there．

A．to；by          B．for；as          C．to；as             D．for；by

16、--Why ________ they wait ________ their bags?

--Because they want to go abroad for their holiday．

A．don't；pack            B．can't；packing         C．don't；to pack          D．can't；to pack

15、--Jay Chou is a very popular singer．

--Yes．________ he comes，he'll be welcomed by fans．

A．Whenever            B．However              C．Which            D．While

14、--This camera is very similar ________ that one．

--Yes．I have some trouble ________ their differences．

A．a(chǎn)s；telling             B．with；to tell          C．to；to tell            D．to；telling

13、________ the students in this school is about three thousand，and ________ of them are girls．

A．A number of；two third                     B．The number of；two thirds

C．A number of；two thirds                     D．The number of；two third

12、You'd better ________ your hands to help him when someone is in trouble．

A．put away              B．put out            C．take out                D．put up

11、--Is Jim playing video games?

--No，he's ________ his homework now．

A．forced to do            B．made do            C．forced doing            D．made doing

10、All the readers were ________ by the ________ story．

A．moving；moved                        B．moving；moving

C．moved；moved                           D．moved；moving