题目内容：

阅读理解。

Sally is a middle school student. Here is her schedule(课程表).

	Monday	Tuesday	Wednesday	Thursday	Friday
9:00-9:40	English	Math	English	Math	English
9:50-10:30	Math	English	History	English	Math
11:00-11:40	Music	Art	Music	Music	Art
lunch
13:00-13:40	Science	History	Science	Geography	Geography
13:50-14:30	PE	PE	Computer	PE	Computer

根据表格内容，选择正确答案。

1.Sally has ______PE classes a week.

A．two                 B．three

C．four                 D．five

2.Sally has a(n)_________class from 13:50-14:30 on Friday.

A．art                  B．music

C．science              D．computer

3.Sally has ______from 11:40-13:00.

A．lunch               B．music

C．science             D．art

4.Sally has a(n)________class every day.

A．Math                B．Science

C．English              D．geography

5.Which is NOT right?

A．Classes start at 9:00 a.m. in Sally’s school.

B．Sally doesn’t have math on Wednesday.

C．Sally only has fifty minutes to have lunch.

D．All the art classes are in the morning.