1.How( )she go to school in the morning?A.is B.does C.do
2.Thatis( )Americannationalflang.There( )fiftystarsonit.A.a,is B.an,are C.an,is
3.Yesterdaymyparents andI ()our house.A.arecleaningB.cleaned C.are goingto clean
4.Listen! Xiaoming( )in her classroom.A.sings B.singingC.is singing