how have your grandchildren been 翻译

how have your grandchildren been 翻译 How many grandchildren does Bob have?什么意思 改错：How long have you been starting your class? how long have there been mice in your attic? How long have been away from your t_____ how long have you been in love with your boss? How long have been away from your t( 填空 英语文章翻译You have been in New your for a long time.How do you L how have u been? How have you been? How long have you been in class today?怎么翻译? How long have you been collecting shells?翻译