Put the verbs in brackets into correct form.

I ...(not/can/say) when I first realized Billy I ...(be) in trouble with the police. He often talked to me about his problems and, as his friend, I ...(give) him the best advice I could. I also said I'd let him come and stay with me but he ...(turn down) my offer. I tired to prsuade him to stop spending so much money at the club and to sit down and siscuss his problems with me but he ...(tell) me mind my own business.