he is ____ young

Tough he is very young,he know____ ____(许多) The boy is too young to dress ____(he) 替换练习:He is too young to go to school.He is _____ _____ ____ He is too young to go to school,____ ____?（反义疑问句） Though he is very young,he knows ____ ______ (许多）. His son is too young.He can't take care of ____(he). He is a famous singer.It is ____ for young people to be his He is young,____,but experienced A,for sure B.to be sure C.m ____ is a young man there.空里面填什么：A：He B:It C:There He is such a great scientist ____ many young people look up My brother is so young that he can't take care of ____ .A.hi Who is the young woman ____ brown?