... people live on islands?

(a)  

... water is in the ocean?

(a)  

... money is in a bank?

(a)  

... bread is eaten per day?

(a)  

... sand is in the deserts?

(a)  

... bottles of juice are in the fridge? Three.

(a)  

... bananas have we got? We haven't got any.

(a)  

... milk have we got? About one and a half litres.

(a)  

... sugar have we got? Enough.

(a)