当你在电话里介绍自己时,你应该说:________Hello. This is Mark. B. Hello. I am Mark. C. Hello. He is Mark.
Wang Mei music and often to music .
He said the sun _______ in the east and _______ in the west.
We will go shopping if it _______ tomorrow.
One of the boys _______ a black hat.
Jenny _______ in an office. Her parents _______ in a hospital.