teeth,How often do you brush your teeth ,I brush my teeth _ a week,I _ brush my teeth,Our teeth can be strong and healthy,seven times,always,Always Brush your teeth,Why ,Because its good for you,be good for sb 对某人有益,When does Li Ming brush his teeth ,Lesson 8 Always Brush Your teeth,6:55,7:00,7:05,breakfast,Li Ming has breakfast at 7:00 . Before breakfast, he washes his hands. After breakfast, he goes to school,before breakfast,after breakfast,Before 在.之前 after 在.之后 在上课前 Before cla