单词拼写。

1. I caught ____( 看见)of my former teacher just now, but very soon he turned a corner.

2. Something is disturbing him, so he can' t _____ ( 安下心来)down to his work.

3. She was t ____ at the thought that Ronnie would kidnap Sam.

4. It' s hard to m _____ his ability when we haven' t seen his work.

5. It is said that Tangseng and his four apprentices ( 徒弟) traveled w ____   in order to obtain

    the sacred Buddhistscripture.

当烟雾呛人时，应采取怎样的防护措施？