We have breakfast at half  seven.  (   )

A．past

B．at

C．to

They start ______.  (   )

A．work

B．to work

C．works

选词填空

A．brush

B．to

C．bed

D．quarter

E．lunch

（1）I have ________ at half past twelve.   
（2）I get up at a ________ past seven.   
（3）Ming go to ________ at eight o'clock.   
（4）I go to school a quarter ________ eight.   
（5）I ________ my teeth every day.