Youkeep quiet in the library because everyone is reading here.
Tom, it’s cold outside. _______ your coat when you go out.
Excuse me. Is this ________ dictionary ? — No. That one belongs to ________.
The survey shows that 200 students do different things during their vacations. ______ of them take classes according to the survey.
Please __ your notebook to school. I want to use (用) it.