When I finished the story, Lenin jumped up from his chair and started pacing the floor, ______, deep in thought.
Dogs have a very good ______ of smell and are often used to search for survivors in an earthquake.
. I’ll never forget the day ______ I was born.
It was not until midnight ______ they reached the camp site.
I like getting up very early in the morning because the morning air is so good ______.
You ______ be hungry already — you had lunch only two hours ago!