I an not sure how long they____

I an not sure how long they____ I am not sure how long they _. by the way,how long ______?I am not sure .I hope to see all --How long are they _______the house?--I am not sure.A.buyin I forget how long you do not 1.I'm not sure how old are you?2.I'm not sure how old you ar Do you know -----?I'm not sure.maybe an artist. They____(not have) an English lesson every day they____ (not go)for an outlook if it____ (rain)tomorrow I'm not sure I'm not sure ( ). 英语翻译I did not know how long you can support.Did not know how