问题

Without facts, we cannot form a worthwhile opinion for we need to have a factual knowledge ________ our thinking.

A:which to base on
B:which to be based on
C:on which to be based
D:on which to base

正确答案是：

同类题型

下列加点实词解释错误的一项是：（）

He was ______ tired ______ go on walking.

You can see the village _____a distance of 20 miles

e me, what can I do for you—Yes. I’d like to place ____ advertisementfor _____ used car in your paper.

I go to the playground talk my friends.