are these your cases 这些是你的箱子吗 五十年these放在your的前面...五十年 是为什么 打错了

are these your cases?怎么翻译? these are your cases 跟are these your cases,第一个用法可以吗? 把一般疑问句改成陈述句.Are you Swedish?Are your friends Danish,too?Are these your cases?Are you tourists?Are your fiends tourists too? 连词组句 these,are,cases,their.（一般疑问句）these,are,cases,their一般疑问句. are these your cases 这些是你的箱子吗 五十年these放在your的前面...五十年 是为什么 打错了 填be动词Their class ( ) clean.Whose ( ) these cases?( ) these your cases?What ( ) your jobs?Our school ( ) big and clean. THese are orange pencil cases (改为单数句） these are orange pencil cases 改为单数句 These cases are( heavy). 对括号部分进行提问 Are these your Are these your pencils? Are these books ( )(your)? are these your parents are these your cousin Are these your trousers?Yes,these are, These pens are your.henna Are these your _____(letter) John,are these books----(your)