Must we donate our pocket money to the poor right now?—No, you _______. You can think it over and do it before Friday.

I am not going swimming tomorrow afternoon. —-_____. I have to clean up my bedroom.

Is this your book, Alice?—Yes, it is ____ book.

.—Were you able to borrow Helen’s camera?—No,she said ______lend it to anyone.

There is somebody knocking at the door. Who________ it be?—I’m not sure. It ________ be a postman.