1.Petrol is refined from the ______ oil we take of the ground.(CET-4,2001.6) 2.By law, when one makes a large purchase, he should have ______ opportunity to change his mind.(cet-4,2000.6) 3.A lot of ants are always invading my kitchen.They are a thorough _____.(CET-4,2000.1) 4.By ______ computation, he estimated that the repairs on the house would cost him a thousand dollars. 5.In the end he ______ the most important points from his long speech. [A]rude [B]rough [C]abstracted [D]adequate [E]crude [F]nuisance [G]coarse [H]excessive 答案： 1.选[E]。[题意]汽油是由我们从地下开采出的原油提炼而成的。 2.选[D]。[题意]根据法律，当一个人进行大宗购买时，他应该有充分的机会改变主意。 3.选[F]。[题意]我的厨房里总是爬进来许多蚂蚁，真是讨厌！ 4.选[B]。[题意]经过粗略计算，他估计修整这所房子需要一千美元。 5.选[C]。[题意]最后他从自己的长篇演说中总结出最重要的几点。
