按要求改变句子（每格一词）。14%
（1）They are playing the piano and doing puzzles. (改为否定句）
They ______ playing the piano ______ doing puzzles.
（2）The farmer had some ducks on his farm.（改为一般疑问句）
______ the farmer _____ any ducks on his farm?
（3）The boy goes to bed at half past nine every day.（对划线部分提问）
______ ______ does the boy go to bed every day?
（4）Mary was in the school library.（对划线部分提问）
______ _______ Mary?
（5）She wanted to buy the red pen.（对划线部分提问）
______ ______ did she want to buy?
（6）The bag on the bed isn’t my bag. (改变句子，意思不变)
The bag on the bed ______ ______.
（7）His glasses are different from hers. (改变句子，意思不变)
His glasses are not the _______ _______ hers.
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