题目内容：
听短文，填空：You probably have noticed that people express similar ideas in different ways depending on the situation they are in. This is very (36) ________. All languages have two general levels of (37) ________: a formal level and an informal level. English is no (38) ________. The difference in these two levels is the situation in which you use a (39) ________ level. Formal language is the kind of language you find in textbooks, (40) ________ books and in business letters. You would also use formal English in compositions and (41) ________ that you write in school. Informal language is used in conversation with (42) ________, family members and friends, and when we write (43) ________ notes or letters to close friends.
Formal language is different from informal language in several ways. First, formal language tends to be more polite. (44) ________________________________. For example, I might say to a friend or a family member “Close the door, please,” (45) ________________________________.
Another difference between formal and informal language is some of the vocabulary. (46) ________________________________. Let’s say that I really like soccer. If I am talking to my friend I might say “I am just crazy about soccer!” But if I were talking to my boss, I would probably say “I really enjoy soccer.”
36__________
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