As we know， none of us likes pollution.

Has Sam finished his report—I have no idea. He _______ it in his office the whole morning.

Could you please tell me ______—At 8:00p.m.

When the doctor told me that my grandfather is badly ill, I am really him.

The company promised to pay some money forthe customers __ ___ their shoddygoods and ______ an apology in public．