用所给词的适当形式填空。 1. When the teacher asks yo
题型：填空题
问题：
用所给词的适当形式填空。
1. When the teacher asks you a question, you should answer ____ (loud).
2. "Please be quiet. No ____ (talk)!" says our biology teacher.
3. Xiao Tao goes to the zoo ____ (see) the lovely pandas.
4. ____ (not arrive) late for the meeting. It's impolite.
5. We have to ____ (clean) the classroom every day.