Young Larry stops by Mr. Smith's Clothes Store. Mr. Smith sees him and says: "Can I help you?" young Larry thinks for a minute and says, "Er, yes, good morning, Mr. Smith, I need two green sweaters for 15 dollars each, a pair of black shoes for 28 dollars, socks for 2 dollars for three pairs and three skirts in purple for 20 dollars each. "
Mr. Smith looks at young Larry in surprise (惊讶). He doesn't think a kid can pay for (支付) them, but he thinks maybe Larry's mother asks her son to do so. He goes into the store happily and takes out a big bag to put the clothes in. Young Larry stops him and asks "How much does that come to?"
"One hundred and twenty dollars." Mr. Smith answers.
"Now, if (如果) I give you two hundred dollars, how much change can I get?" asks Young Larry. "Eighty dollars." Mr. Smith answers.
"If I go on to take a yellow jacket for twenty dollars, how much change can I get then?"
"Sixty dollars. That's for sure." Mr. Smith answers with a little anger (生气). "Er, in fact," Larry says at last, "I don't want to buy the things. I ask you that just because it's my math homework, and I need some help. Thank you. Good bye! Mr. Smith. "