write there isn't a, there isn't an, There isn't any or There aren't any
____ rice in the cupboard
____ sandwich on the plate
____ sugar in the tea
____ vegetables in the fridge
____ fridge in the room
____ orange in the basket

there isn't any ricethere isn't a sandwichthere isn't any sugarthere aren't any vegetablesthere isn't a fridgethere isn't an orange