..---You haven't said one word about the design, Joe. What's your idea? ---Sorry. I________about something else.
Now their talks have reached a key stage ____ one side must give in to the other.
A prisoner by the name of Jack escaped _____ prison last night.
You should do the things worth ____, and if you have difficulty _____ them, you can turn to your family.
一I’d like to take a long holiday. 一. We are too busy!
—Peter, let’s check what we still have left. —Well, _____ is no use evaluating the total loss before the typhoon leaves.