is he your friend,为什么用is?

Is he your friend yes___. is he your friend,为什么用is? ( ) is your friend?He is a policman. Is he your friend?改为复数 This is (he)schoolbag.Is (he)your friend?填空 （）he your friend yes,he is.补全对话 Is that your cousin?(用friend改为选择疑问句） Is that your cousin or your friend?要加2个your 为什 Is he your cousin?用friend改为选择疑问句 Is this your friend 肯定回答是什么?Is he your friend?还有 Is David your friend 的回答是?请分别回答! is that your friend? he your is friend 连词成句Friend后面是“？”号 What time () you go to school?() is your friend ()?He is 14 () ().() language does he speak? he's your friend now Is this?your friend is Is Guo Peng your friend?回答是：Yes ,it is.还是回答：Yes ,he is. 由or your is he friend brother your 组成的句子是什么 求英语翻译:He appears to be your friend but I doubt if he is 求教:He appears to be your friend but I doubt if he is啥意思内