the tall man who is playing basketball is yaoming.为什么要加who 不

Who is playing basketball on the playground? who is the man 前面要加什么时才要变成who the man is? Who is the man. 英语 关系代名词The man who wear sunglasses is my father为什么要个who,去掉不 The musician who is playing guitar is my friend 为什么guitar前面不 who is the best man 请问who is the man Who is the old man? He is the only one of the boys who enjoys playing basketball Who is the man?为什么回答 I know who is that man 是错的? The girl who is in green hat is my sister.为什么要加"who"? He is one of the boys who ______(like) playing basketball.