Time waits for no man. But teenagers won’t realize the value of time until it’s gone. Don’t waste your time, you will regret it.A. and B. or C. but
---Did you catch what the teacher said? ---No. She spoke so fast _______ I couldn’t hear her very clearly.
---Where’s Li Hua? ---Look! He _______ tennis on the playground.
He is a very honest man. He never _______ lies.
It’s difficult for me to decide which one to choose, because ______ of them are good.
Mr. Li regards Ningxia as his second_______ because he has been here for over twenty years.