We will never forget what happened ____ the afternoon of May12, 2008.
This is a new CD ______“Best Friend”.
I don’t know the city. Where can I find ___ good restaurant?.
He is very ______and he always explains things _____us.
---Must I hand in my exercise book now, Mr. Zhao? ---No, you ______. You may give it to me tomorrow.
It __________ hard outside, let’s not go shopping.