用are you at home还是are you home?说明原因

用are you at home还是are you home?说明原因 Are you in home?还是are you home?还是are you at home?表示询问你是在家里吗? Are you at home today? you,at,are,helpful,home,(.) helpful you home are at are you helpful at home Do you fell( ) are you at home( ) What are you （ ）at home,ChenJie? Are you helpful at home ? 回答 Are you helpful at home?答语是什么? Are you helpful at home是什么意思 Are you at home?的意思