1, none (none of them: không có từ nào trong số chúng)

2, words (n, từ)

3, those (“slang words are among those used most often”: từ lóng nằm trong số những từ được sử dụng thường xuyên nhất)

4, of (make of: tạo thành từ)

5, used (được sử dụng)

6, an (an idea: một ý niệm)

7, use (v, sử dụng)

8, other (other people: những người khác)

9, used (được sử dụng)

10, However (Tuy nhiên)

Most slang words are used more in speaking than in writing. For this reason (1) none of them can be found in dictionaries. About 1,000 to 2,000 of these words Most Americans know about 10,000 to 20,000(2) words are slang. However, slang words are among (3) those used most often. Slang words are made (4) of by special groups such as workers, students and musicians. They are (5) created to describe a new object, experience, (6) or idea. At first only members of the special groups (7) use the slang words. Later, some of the slang words are used by (8) other people. Slang words are (9) used for a time when they are usually forgotten and not used much. Student studying English as a foreign language should be very careful about learning slang words (10)  because