根据句意写出所给单词的正确形式。
　（1） Look! One of the children __________(swim)in the lake.
　（2） Lily is much __________(health) than her sister.
　（3） They _________(fly) to the UK, didn’t they ?
　（4） Is _________(eat) too much good or bad for your body ?
　（5） Mr. Lee _______________ (give) us a talk on the history of China tomorrow, isn’t he?