一、用括号内所给单词的适当形式填空。
1. I improve my pronunciation by (listen) to English songs every day.
2. Can you finish (do) your homework before nine o'clock?
3. Don't worry about (make) mistakes when you talk to foreigners in English.
4. (help) each other at school is a way to promote (促进) our friendship.
5. It's time for class. Please stop (talk) and keep quiet.

二、根据句意，用恰当的介词完成句子，每空一词。
6. He became rich hard work and his special ability.
7. The workers promised to have the house finished the end of the year.
8. They are talking about something English.
9. The man is cutting the apple a sharp knife.
10. Mr. Zhao is going to the airport taxi next week.