B．Where there's life，there's hope

　　C．Never put off till tomorrow what you can do today

　　D．One tree does not make a forest

　　答案　A

　　解析　失之毫厘，谬以千里。此题要注意上下文的衔接与谚语的正确使用。

　　5．Do remember ________ your friend when you come to our party.

　　A．to bring B．bringing C．to take D．taking

　　答案　A

　　解析　remember to do sth记得去做某事；remember doing sth记得做过某事。

　　6．If he can't pay up，he's ________ with losing his home.

　　A．face B．to face C．faced D．facing

　　答案　C

　　解析　此题考查固定短语。be faced with面临......。

　　7．Finding information in today's world is easy. The ________ is how you can tell whether the information you get is useful or not.

　　A．ability B．competition C．challenge D．knowledge

　　答案　C

解析　句意为"在当今世界找到信息很容易，难题在于你如何判断你所获取的信息是否有用"。challenge挑战；ability能力；competition竞赛；knowledge知识。