根据句义，用括号内所给词的适当形式填空。
（1）The old should be spoken to (polite).
（2）My family lives in the (center) part of the city.
（3）He is too (care) to pass the final exam.
（4）Poetry is a beautiful way to express (think) and feelings.
（5）Children's(expect) ideas often surprise the adults.
