I can’t say which wine is best—it’s a _______of personal taste.
—Have you seen Mike?—I just saw him in the______.
—Where did you spend last weekend?—At______.
Some friends tried to settle the quarrel between Mr.and Mrs.Smith without hurting the feeling of______,but failed.
Everybody in the class must give in______exercise books within the given time.
Understanding the cultural habits of another nation,especially ______containing as many different subcultures as the United States,is a complex task.