( )1.— _____ does your mother usually go to the office?
—By bus.
A.Where B.What C.How D.When
( )2.—Hi, Lily. Happy New Year!
— _____
A.Thank you. B.Yes. C.Certainly. D.The same to you.
( )3.—What’s your favorite subject?
— _____ Because it’s easy and interesting.
A.Toys. B.Math. C.T-shirt. D.E-mail.
( )4.Look! The students _____ the classroom.
A.clean B.are cleaning C.are clean D.cleaning
