I’m sorry, Bill. I _________ the book to you last week, but I was so busy that I forgot to do so.

—It looks as if it’s going to rain, but I’m not sure whether the windows are shut in my apartment.—You         as well go back to have a look.

—God！My cell phone is missing.—You ________ have left it at home.I heard you telephone our daughter in the bathroom.

(2011·江西高考)It ________be the postman at the door.It's only six o'clock.

—Will you read me a story, Mummy?—OK. You ________ have one if you go to bed as soon as possible.