C

On Friday, a physics lesson begins at（）

单项选择题Do they have lessons at 10:30 am on Thursday（）

A．Yes, they have.
B．No, they don’t.
C．We can’t know from the timetable.
D．None of the abov

单项选择题It is possible to escape through the windows ______.

单项选择题School Watch can help its members ______.

单项选择题Which of the following best describes your clean skin ( )

单项选择题Ⅱ. 完形填空 Cloze