改写句子。
1．Mary can make some strawberry cakes.（否定句）
Mary ______ make ________ strawberry cakes.
2．Has her deskmate got a blue skateboard? （肯定句）
Her ____________ got a blue skateboard.
3．Grandma is fine. （划线提问）
_______________ grandma?
4．Sam is on the sofa. （划线提问）
_______________ Sam?
5．I’m sad. （划线提问）
How ______ you _______?
6．I have got a new colour ball. （一般疑问句）
_______ you _______ a new colour ball?
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