It is bad ________ to talk with your finger ________ at the other person.
The man we followed suddenly stopped ad looked as if ________ whether he was going I the right direction.
—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.