you are a good girl中间为什么用are 而不用is?

Are you a good girl?否定回答 in fact you are a good girl You are a good girl改为复数句 are you a girl? ARE YOU A GIRL you are a good girl中间为什么用are 而不用is? you are a good you are a kind girl I'm a handsome man,You are a good-looking girl! You你 are 是a一个 good好 girl女孩,对吗你是一个好女孩 you are a good girl to help me翻译成中文是什么 You are a good girl,you say,you needn't me to say thanks for you, because we —You are a good girl.You ( ) deal with the thing well.—Thank you.A evenB suchC probablyD fairly You are a good girl.You ( ) deal with the thing well.Thank you.—You are a good girl.You ( ) deal with the thing well.—Thank you.A evenB suchC probablyD fairly Are you a boy or a girl? Are you a boy or a girl? Are you a boy or a girl are you a boy or a girl