May I see you at 4 o’clock this afternoon?—— I’m afraid not, I a charity meeting then

_____, do you know where the nearest post office is

How do you study for a test–I study by asking the teacher help．

The premier minister ordered that he ______ of everything that is going and required that all the working staff _______this order.[ ]

What do you_________ to your mother—I am going to clean my room every day.