小题1:There is a small wooden house ___________ (在…之中) tall buildings.

小题2:The chance is so ____________ (极好的) that you should catch it.

小题3:What a pity! You are the __________ (四十九)to fail in the driving test.

小题4:Before making the final decision, you’d better do more ____________ (研究).

小题5:We have ten minutes’ __________ (休息) between two classes.

（）由氟碳表面活性剂、碳氢表面活性剂和添加剂及水组成，灭火时，泡沫和水膜有双重灭火作用，能迅速地控制火灾的蔓延。

A．氟蛋白泡沫灭火剂

B．水成膜泡沫灭火剂

C．普通蛋白泡沫灭火剂

D．成膜氟蛋白泡沫灭火剂