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最佳答案：1.I am not a doctor.are you a doctor?yes I am .No,I'm not.2.he isn't a teacher.I
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最佳答案：否定句：I am not bored.疑问句：Are you bored?
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最佳答案：are you in China？ 肯定：yes，I am 否定：no，I’m not
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最佳答案：1.this is gina.Is this gina?yes,she is. no , she is not.2.that is his brother.Is
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最佳答案：Is this ( that ) a catYes,it is.No,it isn't.
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最佳答案：Are those peaches?Yes,they are.
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最佳答案：Are there many bananas on the desk?Yes,there areNo,there aren't
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最佳答案：Is there a desk in my room?No,there isn't.Yes,there is.
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最佳答案：Is your car red?Yes,it is.no,it isnt
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最佳答案：一般疑问句： Does she often ride a bike to school ?肯定回答:Yes,she is否定回答:No,she isn`t