I don’t know what her reaction is _______ to be, so I don’t dare to tell her the result.

Don’t shout at him. He _______.

It is selfless ________ the doctor to devote all thetime he had ________ for the patients.

up, ______ war is unavoidable, human beingscannot enjoy everlasting peace.

Can you speak a little louder I can ______ hear you. —OK.