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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：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：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：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：一般疑问句：是疑问句的一种.它是以be动词,have或助动词、情态动词开头,用yes（是）或no（否）来回答的句子.其结构是：系动词be/助动词/情态动词+主语
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最佳答案：2.what did he do yesterday?
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最佳答案：Do you want to go to a movie?Yes,i do.
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最佳答案：yes,you can./no,you can't.yes,you must./no,you needn't.yes,you need(must)./no,yo
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最佳答案：Yes,it is.No,it isn't.What's this in English?-- It's a pencial.Is this an apple?
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最佳答案：1.Was it a busy one?Yes,it was .No,it wasn't.2.Did you wash your clothes?Yes,I d