(   )1.— _____ does your mother usually go to the office?

—By bus.

A.When                       B.What                       C.How      

(   )2.— _____

—I’m looking for my wallet.

A.Can I help you?      B.What’s he doing?    D.What’s in the wallet?     

(   )3.He is new here, so he has_____friends.

A.few                            B. little                        C. a few

(   )4.Look! The students _____ the classroom. .

A.clean                          B. cleaning                   C. are cleaning