She was staring out over the lake,_____ in thought.
He pretended ______ the problem, but he ______.
We ______ hurry because we still had a lot of time.
We're visiting Disneyland next week, ______ should be very exciting.
– May I have a word with you? I won't ______ much of your time. – Sure.
Students should be encouraged to ______ their own opinions, ______ right or wrong.