正确抄写下列单词。
Hi, Bobby!(改为同义句) ______, Bobby!
This is a ruler.(改为一般疑问句) _______ _______ a ruler?
She is Su Hai.(改为一般疑问句) _______ she ______?
What’s this?(改为复数句) _______ are ______?
He’s my brother.(划线部分提问) _______ ______ he?
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