On his way to school, he was _____.　　

When we finally ______ to get all the work done, we were so exhausted that we simply felt like lying down and having a good sleep. 

To his disappointment, the opinion he had stuck ______ out wrong. 

The problem had become _____ in his mind, and he could not decide what to do about it.

John　Dewey　believed　that　education　should　be　a　preparation　for　life，that　a　person　learns　by　doing，and　that　teaching　must＿＿the　curiosity　and　creativity　of　children．