According to the Ministry of Health, by May 1, 2003, the total SARS deaths on the Chinese mainland _____to 170.
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.