--- ________ David be the new chairperson of the Students’ Union?--- He _______ be, but I’m not sure.
Mum, ______ my English teacher, Ms Yang.
—— How is your father? ——____________.
This is _____ book. It is ____ English book.
—Have a nice day! —____!
—Is that man your father? —No, he is my father’s____, my uncle.