There sat an old man in a black coat, his head in his hands thinking.
Walking is a nice way to relax. ______, it can help reduce body weight if you do it regularly.
Having decided to take the trip, he ______ preparing for it.
—You mustn’t leave your car unlocked while you are away. —No, I ______. Please don’t worry too much.
I was caught in a traffic jam for over an hour, otherwise I ______ you waiting for such a long time.
—Can I help you with it? —I appreciate your ______, but I can manage it myself.