1. (2022八下·胶州期末) 用所给词的适当形式填空。每词限用一次。

introduce, develop, encourage, check out, hold

1. （1） Nick his old things when his phone rang.
3. （2） My best friend Jeff always me to read more books.
5. （3） The young father his baby in his arm and played with him.
7. （4） Zhang Zhifeng tea culture to students in two weeks.
9. （5） Scientists in China the first robot whale shake in the world so far.