【therich__alwayshappy.1.Therich__alwayshappy.A.isn'tB.aren'tC.wasn'tD.weren't2.Ninetypercentofthework__beendone.A.isB.areC.hasD.have3.Somefolk__neversatisfied.A.isB.areC.seemsD.feels4.Manyastudent__neversatisfied.A.isB.areC.se】

　　therich__alwayshappy.

　　1.Therich__alwayshappy.

　　A.isn'tB.aren'tC.wasn'tD.weren't

　　2.Ninetypercentofthework__beendone.

　　A.isB.areC.hasD.have

　　3.Somefolk__neversatisfied.

　　A.isB.areC.seemsD.feels

　　4.Manyastudent__neversatisfied.

　　A.isB.areC.seemsD.feels

　　5.Steamandice__differentformsofwater.

　　A.isB.areC.wasD.were

　　6.Onedollarandeighty-sevencents__allDellahad.

　　A.isB.wasC.areD.were

　　7.All__herenow.

　　A.isB.areC.wasD.were