Even if they are on sale, these refrigerators are equal in price to, if not more expensive than, _____ at the other store.
Mr. Smith used to smoke ______, but he has given it up.
--- Have you finished your homework? --- No, I ______ my father on the farm all day yesterday.
I often see him steal things from our supermarket. Do you think I ______ report it to the manager?
. --- Excuse me, but I want to use your computer to type a report. --- You _____have my computer if you don't take care of it.
--- Who is the girl standing over there? --- Well, if you ______ know, her name is Mabel.