题目内容：

Today is Wednesday. Shirley is busy today.

Shirley is a middle school teacher. She teaches P.E. in the school. Shirley has four lessons on Wednesday — two in the morning and two in the afternoon. She needs to teach the students to play volleyball this week. That is her favorite sport. Tina is one of her students. She is really good at sports and she wants to be a volleyball player.

School finishes at 4:00 in the afternoon. After school Shirley doesn't go home. She stays in the school with students in the school volleyball team (队). They will have a volleyball game with No. 2 Middle School next Friday. Everyone wants to win (赢) the game, so they practice hard (努力练习).

Shirley gets home at 7:00 p.m. It's late but she is happy, because she likes being a teacher and she is glad to help her students.    

根据材料内容简要回答下列问题。

1.What subject does Shirley teach?

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2.Is Shirley free in the morning?

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3.Who is Tina?

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4.Why does the school volleyball team practice hard?

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5.When does Shirley get home?

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