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最佳答案：has是助动词have的第三人称单数形式,am,is,are是系动词,知否?知道这个就简单了.否定句;第一句有两种方法,一种直接在助动词后面加not.He ha
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最佳答案：如果他说的事实,就是yes.He like it,doesn't he?如果他喜欢,就是yes,he does；如果他不喜欢,就是no,he doesn't.D
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最佳答案：变一般疑问句 .否定句.否定回答.肯定回答I‘m a doctor.依次为：Are you a doctor?I'm not a doctor.Yes,I am
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最佳答案：it's going to rain tomorrow it's not going to rain tomorrow is it going to rain
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最佳答案：2.what did he do yesterday?
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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：we are going to climb a mountain tomorrowwe are not going to climb a mountain to
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最佳答案：【1】My brather deansstreets.Does your brother clean streets? No, he doesn't.[2]He
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最佳答案：Is this red? Yes,it is.No,It isn't.This isn't red.This is red,isn't it?Is Alice
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最佳答案：1.否定句：I can't sing and dance.一般疑问句：Can you sing and dance?肯定回答:Yes,I can.否定回答No,