Hi，boysandgirls!Anew（新的）MamastoreisinNo.1MiddleSchoolnow．Comeandseeatourgreatsale!Wehavebreadfor3yuan．Xiangpiaopiaomilkteaisonsalefor2yuan．Vegetablehamburgersareonly3yuan．Doyouneednotebooks？Theya

Hi，boys and girls!A new（新的） Mama store is in No.1Middle School now．Come and see at our great sale!We have bread for 3yuan．Xiangpiaopiao milk tea is on sale for 2yuan．Vegetable hamburgers are only 3yuan．Do you need notebooks？They are only 6yuan for three．We also have pens in all colors，only 1yuan each（每支）．Some students want to buy socks．We have black socks for only 10yuan for 3pairs．For girls，we have socks in pink and purple，they are very nice．Come and buy your things at our great sale．

78．The new store is___．

A．in the school

B．in our room

C．in the library

D．in the classroom

79．Mary wants to buy a notebook and a pen，she pays（付钱）___．

A.6yuan．

B.2yuan．

C.3yuan．

D.4yuan．

80．We can't buy___ at the store．

A．pens

B．socks

C．bags

D．bread．