Give a short explanation of the following terms.
Pet name
Christian name
When some English first names are put together, they may have （ ） meanings. For example, "Tom, Dick and Harry" refers to ordinary people.
is a form of addressing all unmarried women，young or old，or addressing married women for professional reason.
Give a short answer to the following questions in English.
Can you give five names for men from the Bible?
In the United States, the five most （ ） last names are Smith, Johnson, Williams, Jones and Brown.
the first name
Among whom is a person's first name usually used?
In the United States, the five most common last names are Smith, Johnson, （ ）, Jones and Brown.
the last name
Give a short answer to the following questions in English.
What is the real name of Mark Twain？
pen name
is a form of addressing all unmarried women，young or old，or addressing married women for professional reason.