题目内容：

阅读下面材料，在空白处填入适当的内容（不多于3个单词）或括号内单词的正确形式。

Questioning can lead to ___1.____(search) for an answer. If we are in the habit of raising doubts as to ___2.___ what we are told is true, we can find the correct answer and learn more.

Two years ago, our teacher ____3._(offer) us an answer to a difficult math problem in class. Although the answer seemed a little strange, nobody ____4.___ I doubted it. Thinking that his answer might be wrong, I ____5.___(careful) analyzed the problem and tries to work ___6._ out in a different way. Half an hour ___7.____, I managed to find the correct answer. When I showed my answer to him, the teacher praised me for my ___8.____(depend) thinking.

From this experience, I have learned that questioning can serve as ___9._____ bridge that helps us to seek the ___10.___(true).