阅读下面短文，在空白处填入1个适当的单词或括号内单词的正确形式。

The 【小题1】 (express) “keeping up with the Joneses” was first used in 1913 by a young American called Arthur Momand. He began earning $125 a week at the age of 23, 【小题2】 was a lot of money in those days. He and his wife moved to a very 【小题3】 (wealth) neighborhood outside New York City. When he saw that rich people rode horses, Momand went 【小题4】 (ride) every day. When he saw that rich people had servants, Momand also hired a servant and gave big 【小题5】 (party) for their new neighbors.

It was like a race, 【小题6】 the race ended when they could no longer pay for their new way of life. They moved back to 【小题7】 apartment in New York City.

Momand looked around him and noticed that many people did all they could 【小题8】(keep) up with the rich lifestyle of their neighbors. He called it “keeping up with the Joneses” because “Jones” is a very common name in the United States. He saw the funny side of it and started to write a series of short stories. The stories 【小题9】 (sell) well and gradually “keeping up with the Joneses” became an idiom 【小题10】 (common) used by many people.