Are these books ________? —No, they are not mine. They belong to _____.

I think I’ve got a bad cold, Doctor, Shall I take some medicine?—No need. Your body itself is able to the virus. Just drink more water and rest.

My father likes to play badminton, but my mother likes to play piano.

I’m afraid I can do nothing about it. All that can be done ____.

_____, nobody believed what he said.[ ]