Your clothes are dirty. Please ________ them on weekends.
A. save B. wash C. wear D. leave
Because people cut down many trees， elephants are ________ great danger.
A. in B. on C. at D. for
My brother likes tigers， __________ my sister doesn’t.
A. and B. but C. for D. so
— arrive late for class， Mike. —I won’t， Mom.
A. Can’t B. Doesn’t C. Don’t D. Do
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
We need to ________ after eating to have good teeth.
A. get up B. brush our teeth
C. get dressed D. do our homework
