A young women is ribing a bike on the steet .这里为什么要加is?

A young women is ribing a bike on the steet .这里为什么要加is? A young woman___(riding a bike/ is riding a bike) on the st "A young child as he is"这里的a要不要加 This is a story about a young women living china the man ()is Jim's brother.A by the bike B on bike C on the a bike is near the beauty is of more benefit to a women 为什么要加of? she is presented on the stage as a young girl The girl is too young to ride a bike.改为同义句 The girl is____ _ There is a plate on the table.为什么table前面要加the啊? The girl is too young to ride a bike的同义句 the boy is too young to ride a bike.改为同义句