______of them has been to Australia several times, so they know the Opera House very well.
I think the shop _______ now. Let’s go ________ it.
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 .