We need to ________ after eating to have good teeth.

A. get up B. brush our teeth

C. get dressed D. do our homework

He usually goes to school ______bike， but sometimes he goes to school ______foot.

A. with； on B. on； by C. on； with D. by； on

— arrive late for class， Mike. —I won’t， Mom.

A. Can’t B. Doesn’t C. Don’t D. Do

My brother likes tigers， __________ my sister doesn’t.

A. and B. but C. for D. so

Because people cut down many trees， elephants are ________ great danger.

A. in B. on C. at D. for

Your clothes are dirty. Please ________ them on weekends.

A. save B. wash C. wear D. leave

— __________ do you go to school every day?

—I go to school at half past seven.

A. Where B. Who C. What D. When

—___________? —They are playing basketball.

A. What are they doing B.What do they do

C. How are they D. Where are they playing

—What are you doing? — _________. It is too dirty.

A. I’m doing my homework

B. I’m playing computer games

C. I’m cleaning the room

D. I’m writing

—Does she have to wear the school uniform today?

—__________. It’s Sunday today. She just has to wear it on school days.

A. No， she doesn’t B. Yes， she does

C. Yes， she has D. No， she hasn’t