根据短文内容，从各题的四个选项中选择一个最佳选项。
Mr. Black is forty-three years old. He has a clothes store. In the store, he 1 many kinds of clothes. And they are all 2 very good prices. Today, the clothes are on3 and many people come to the store. The T-shirts are 4 twenty dollars. The shorts are ten dollars. What about the 5? Oh, the red skirts are fifteen dollars 6 the white ones are ten dollars. The socks are three dollars for one pair and five dollars for two pairs. So many people 7 to buy two pairs.
Mr. Black is always 8 until(直到) 8 p.m. Then he gets a call.
"Dad, 9 are you now?" a girl asks.
"I'm in the store, my dear," he says to her.
"Come back home earlier(早点回家). There is a 10 for you in our house," the girl says.
"A party for me?" Mr. Black asks. And he is very surprised.(惊讶的).
"Yes. Today is your birthday," the girl says.
