50．She wanted the comfort of a large car and the low cost of a small one, so she bought a size in between the two ______.

　　　 A．for compromise　　 　　　　　　　　　　　　　　 B．as a compromise　

　　　 C．as compromise　 　　　　　　　　　　　　　　　 D．for a compromise　

49．At six every evening she_____ whatever she was doing to tell the children a story.

　 　　 A．laid in　 　　　　　　 B．laid off　 　　　　　 C．laid down 　　　　　 D．laid aside　 　

48．You spend more money in playing online games than you_______.

　 　　 A．buy books　 　　　 B．do buying books C．buying books　　 D．do to buy