—What's________you?
—I'm________about my school report.
---________ do you study English?
---By listening to tapes.
--Who's the woman over there? Is it Mrs. Wang?
--No, it ________ be her. Mrs Wang is a little thinner.
---What about playing football this afternoon, Sam?
---I would rather ________ at home than ________ football. It's too hot outside.
---Did you see who the driver was?
---No, the car ran so fast ________ I couldn's get a good look at his face.