----- I don’t think waste water should be put into the rivers or lakes.----_____.It will cause much water pollution.
----Would you like some coffee or tea? ----________. I prefer a glass of water.
Mr. Sun has devoted most of his time _______ his teaching work.
-----Did you go to the cinema to see 3D Titanic last night? ----- No, I ________ go to the cinema. The tickets are too expensive.
— Did you enjoy the outdoor training yesterday? — No, not at all! I was dead after so much hard training.
That is an important bridge __________ this old town _______ Nanjing.