Составить предложение your/ tried/ friends/ have/ skateboarding/ ever / , coffe/ new/ dad/ has/ a/ maker/ bought/, known/ sandra/ long/ you/ how/ have? , long/ london/ for/ time/ lived/ helen/ a/ has/ in?

Have your friends ever tried skateboarding?
Dad has bought a new coffee maker.
How long have you known Sandra?
Has Helen lived in London for a long time?