1.I'm not sure how old are you?2.I'm not sure how old you ar

1.I'm not sure how old are you?2.I'm not sure how old you ar How old are you?i'm( ) (right) How old are you?I'm( )right 1.--Are you sure there are UFOS?--- Sorry.I'm not sure( )tha i'm m___ you are right,but iam not sure. ____.l'm not well.thank you.A how old are you?B how are you? I'm not sure I'm not sure ( ). I'm sure you . ---What are you going to do tomorrow?---I’m not sure.I____ m Do you know -----?I'm not sure.maybe an artist. Are you going to her party?I’m not sure,I ( ) stay home...ne