—Jimmy, your books are everywhere on the desk.—Oh,sorry:I’ll at once.
—Can I have a day off tomorrow, Mr. Johnson?—_______. I can’t do it by myself without you.
—Have all the students known that our class will visit the factory this afternoon?—Yes. Every student______ about it.
--Sorry, I overslept. I forgot to set the alarm.--Your clock ________. Perhaps you should buy a new one.
--There is somebody knocking at the door. Who________ it be?--I’m not sure. It ________ be a postman.
----How do you find your new classmates ?--Most of them are kind, but _________is so good to me as Bruce.