Tom _______ go to Jenney’s birthday party because he argued (争吵) with her days ago.
It’s important __________ us students _______ carefully in class.
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.