题目内容：

根据句意，用括号中所给词的适当形式填空，并将所填单词写在答题卡相应位置。共5小题；每小题1分，满分5分

1.We should try to practice ________ new words after class.  (pronounce)

2.School ________ draws more and more people's attention. (safe)

3.My brother is doing some _________ research on some diseases. (medicine0

4.“Could you please tell me where the Central Park is? ”, he asked _______. (polite)

5.Yesterday Lucy went to get her ears _________. （pierce）