情景交际。

( )1. What is the matter with you?

(     )2. Have you hurt yourself?

(     )3. Is that serious?

(     )4. How long have you been like that ?

(     )5. Did Lily fell off the bike?

《水法》第五十三条规定的节水“三同时”制度是指：新建、改建、扩建工程项目时，节水设施必须与主体工程同时（）、同时（）、同时（）。