Since Tom ______ downloaded a virus into his computer, he can not open the file now.
—Believe it or not, I have met him before.—No kidding? ________ you've never mentioned it?
—Why are you moving out?—________, but I just don't like the atmosphere here.
—Do you need the electric dryer?—________.
—Can I really get a mountain bicycle as a reward if I win the race?—Absolutely! ________.
—Would 13:00 be convenient?—________, but I'll have to check my schedule for sure.