That sign on the building means ‘Danger’.You should _________ .
A.stay away from it
B.come in and have a look
C.take off it
My brother usually goes to school ______ foot.
A. onB. toC. by
I take music lessons in Children's Palace _____ every afternoon.
A. atB. onC. 不填
They look tired, _____ they?
A. don'tB. willC. are
We will get to Zhuhai at ______ six o'clock the next afternoon.
A. nearB. aboutC. beside
When _____ school start in the morning in Canada?
A. isB. doC. does