How long have you _______?
—I want to go to the library but I am afraid I am not in the right . — _____. Go ahead.
—Would you rather come on Friday or Saturday? — _____.
—Did you look up the time of trains to Shanghai? —Yes, the earliest train is _____to leave at 5:30 am.
She stepped into the bedroom quietly _____she might wake up her roommates.
Many people have been ill from a strange disease these days, _____ we’ve never heard of before.