There is __________ picture on the wall. It’s _______ old picture.
——As a member of bus drivers, I am proud of Wu Bin. ——__________. He is a hero in my heart.
——I don’t know ______ watch this is. Do you know? ——It might be Gao Lei’s.
What a nice day! We should go sightseeing ________ watching TV in the hotel.
——Must I come to see you again? ——No, you _________.
He has done _________ to improve his English.