Have you ever considered all the English expressions that include words about clothes? Let’s have a

Have you ever considered all the English expressions that include words about clothes? Let’s have a look. 
People wear pants to cover the lower part of their bodies. We sometimes say that people who are nervous have ants in their pants. Sometimes, people may get caught with their pants down. They are found doing something they should not be doing. And in every family, one person takes control. Sometimes a wife tells her husband what to do. Then we say she wears the pants in the family.
Pants usually have pockets to hold things. Money that is likely to be spent quickly can burn a hole in your pocket. Sometimes you need a belt to hold up your pants. If you have less money than usual, you may have to tighten your belt.
I always praise people who can save their money and not spend too much. I really take my hat off to them. Yet, when it comes to my own money, I spend it at the drop of a hat, which means I immediately spend it.
Boots are a heavy or strong kind of shoes. People who are too big for their boots think they are more important than they really are. I dislike such people.
My father is an important person. He runs a big company. He wears a suit and tie and a shirt with sleeves（袖子）that cover his arms. Some people who do not know him well think he is too serious and never shows his feelings openly. But I know that my father wears his heart on his sleeve.
28. What is this passage mainly about?
A. What pants mean in English.
B. Some expressions about clothes.
C. Some funny English expressions.
D. Some special English expressions.
29. Which of the following expressions can show someone is nervous?
A. Get caught with one s pants down.