do的单三形式怎么写
do 的第三人称单数现在时形式does
v.做,干,办(某事);(以某种方式)做;行动;表现;(问询或谈论时用)进展,进行;
aux.用于实义动词前构成否定句和疑问句;构成附加疑问句;代替实义动词以避免重复
例句
Does he know to come here first?
他知道要先到这儿来吗?
How much does it cost to become a member?
要成为会员得花多少钱?
Does the quality of teaching depend on class size?
教学质量取决于每个班的人数吗?
When does her new book come out?
她的新书什么时候出版?