根据短文内容, 用方框中所给单词的适当形式填空, 每词限用一次。

disabled       on     true     toothache    thank

The weather in Ningbo seems not to be clear four seasons. It becomes either too hot or too cold. Some visitors have headaches and very often. Many volunteers go to hospitals to help people to see doctors easily. For example, they help some blind people to check in and help people to take a temperature when they have a fever. to their kindness, we can depend each other. It makes communication much easier among strangers. To tell the , I helped some strangers in the hospital recently and I felt excited when they thanked me.