Chinese people have been using paper for over______ years.
Are these books for Lily? ——No, they are for
Do you know when Tonny came back last night? —– Yes. It was not yet nine o’clock _____ he came back home.
Tommy, your mum has been out without glasses!– Well, take it easy. she is back home for them.
Tell me about Brother Sharp, please. — He was a beggar(乞丐). He became a blue-eyed boy(红人) on the Internet because of his cool appearance and dressing style.