1.He is __ little boy that he can't dress himself.

1.He is __ little boy that he can't dress himself.
A.such B.so C.such a D.so a
2.This is __ interesting a book that I have read it twice.
A.so B.sucn C.so a D.such a
3.They___ in this village since they came here.
A.lived B.have lived C.live D.are living