句型转换：1、My brother is playing basketball .（改为一般疑问句） ____ your brother ____ ____?
2、Lily is writing a letter to (her pen pal ) .(对括号内部分提问）
____ ____ Lily writing a letter to
3、The story isn't interesting ,i think.（同义句转换）
I ____ think the story ___ ____.
I ____ the story is ____.
4、My father is at work .（同义句转换）
My father ____ ____.
5、He is shopping .（改为否定句）