单选：以下哪种方法是节约用水的好办法？（）A．用公家的水B．在厕所水箱里放一块砖头C．让水龙头滴水不走水表

—Stars have better player, so I ______them to win.A. hope B. prefect C. expect D

—Professor, would you slow down a bit, please? I can’t ______ you.A. keep up wit

—Of all the students in our class, Betty writes______.A. very carefully B. most

—Never get off the bus______it has stopped.A. if B. as soon as C. until D. or

—Nancy is considered to be ______ the other students in her class.A. less intell