In those days bikes were not ______ used because few people could afford (负担起) to buy one.
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 .