阅读Sam给Oliver写的电子回件，完成相关任务。
From：Sam@penpal.com
To：Oliver@penpal.com
Dear Oliver，
June 16th
   Thank you for your invitation.But I am sorry I can't go to your birthday party.I'm in Sydney now.It's cold and sunny here.It's winter.It's different from（与……不同）China.Let me show you some pictures.
   Look!This is my classroom.It's nice and big.I learn English here.In this picture you can see the Opera House.It's the most famous（著名的） building in Australia.It's very beautiful.
   Look at this picture.We are having an English party.Tony is singing songs.Lily and May are playing the pipa.I am doing kungfu.We are very happy.
   Wish you a happy birthday party!
Sam

任务一：读邮件，找出Sam电子回件中描述的话题，在圆圈内打"√"。

任务二：读短文，根据邮件内容判断对错，对的打"√"，错的打"×".
（1）Bill is in Australia now.

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（2）It is winter in Sydney but it's spring in China.

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（3）The Opera House is the most famous building in Australia.

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（4）Lily and May are playing the guitar at the party.

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（5）They are having a few fun things at the party.

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