第三人称 it,she,he使用does
肯定句 He goes to school on foot at seven o'clock.
否定句 Alice doesn't play in the classroom.
一般疑问句 Does Mike like to play ping pong?yes,he do.no,he doesn't
特殊疑问句 What time does Tom's mother watch TV?
陈述句 l go to school by taxi.
There are one hundred students.
Kitty buy a new doll.