（1）These are our friends. (改为一般疑问句)

________ ________ your friends?

（2）That is my ruler. (改为同义句)

That ruler ________ ________.

（3）My brother does his homework every day. (改为否定句)

My brother ________ ________ his homework every day.

（4）My favorite subject is Chinese. (对划线部分提问)

________ is ________ favorite subject?

（5）This is a watch. (改为复数句)

________ are some ________.

【考点】可数名词及其单复数，物主代词，指示代词，助动词，一般现在时，疑问句

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