— We have known something about the accident, but we need more ____. Can you help us?— Yes, sir.
---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.