-How do you know I’ve just come back from the beach?-There is _____________ sand in your shoes.
We call it dinner because we have ________ to eat.
---Would you like ___________________, Peter? ---Some orange, please.
--- __________ are you so happy? --- Because it is my birthday.
---___________ do you watch TV every day? ---Two hours .
---_________ meat do you need? ---One kilo.