Which of the following expressions is NOT proper in the situation?
选项：

A: You say to your friend: "Hold your tongue!" when you feel he is too noisy.
B: A man with a gun rushed in a store and said, "This is a hold up. Give me youMoney.''
C: You were late for school and said to your teacher; "I was held up by heavy traffic."
D: You receive a phone call and are asked to find your father, you say, "Hold on,please.''