One day, a little boy comes into a shop and says to the shop assistant, “I want to buy twelve exercise books of 6 cents(美分)each and nine pencils of 10 cents each. How much is that altogether(总共)? ”

The shop assistant writes these numbers down on a piece of paper and thinks for a minute. Then she says, “1 dollar 62 cents. ”“If I give you ten dollars, how much money will I get back? ”“You will get 8 dollars 38 cents for change. Here you are. These are the things you want. ”
“No, thank you. I don’t want to buy anything. ”The boy looks at the piece of paper and says politely, “This is my math homework. Thank you very much. Can I take it away? ”
小题1:The story happens______.
A.in a shop
B.at a mall
C.in a supermarket
D.at school小题2:The little boy comes to the shop for______.
A.nine pencils
B.some books
C.nothing
D.his homework小题3:The little boy is______.
A.bad
B.naughty but clever
C.stupid(愚蠢的)
D.hard-working小题4:At last the shop assistant must be______.
A.excited
B.happy
C.angry
D.surprised小题5:The underlined word “change” in the second paragraph means______.
A.零钱
B.交换
C.改变
D.金钱