Hello，boys and girls! My name is Zhang Hanyun，and my English name is Selina Zhang. Kristy Zhang's Chinese name is also Zhang Hanyun．She is a singer（歌手）．But I'm a clerk at Mr. Cool's Clothes Store．

We have shorts in black and white for 3 dollars．We have shirts in blue，black and white．The blue shirts are 7 dollars．The black shirts are also 7 dollars．The white shirts are on sale for 4 dollars．For boys，we have white socks．A pair of white socks is only 1 dollar．We also sell black shoes for only 18 dollar's．Come and see for yourself at Mr. Cool's Clothes Store．

请根据短文内容完成后面各题。

1．You can't buy ________ at Mr. Cool's Clothes Store．

A．black shoes          B．black shorts         C．blue shirts              D．black socks

2．Two white shirts and a pair of white socks are ________．

A．6 dollars              B．8 dollars               C．9 dollars                 D．14 dollars

3．You have 21 dollars，and you can buy ________ pairs of shorts．

A．3                            B．7                         C．8                           D．6

4．Selina Zhang is a ________．

A．clerk                   B．teacher                C．student                  D．singer

5．--Can you buy white shoes at Mr. Cool's Clothes Store?

-- ________．

A．Yes，we can       B．No，we can't       C．Yes，I am             D．No，they aren't