We spent many hours in a pleasant conversation______ how to fish.
On average, these footprints are 14 to 18 inches long, 5 to 9 inches wide and much larger than _______ of a human.
Young as he is, David has gained _______ rich experience in _______ society.
--- Tom, how about going for a picnic this weekend?--- _________. I love getting close to nature.
I was really anxious about you. You ______ home without a word.
Wilma became the first American woman to win three Olympic gold medals in track, ________ made her mother very proud.