6. My granddaughter ( grandmother )is too old to look after herself
6. Or - My granddaughter is too old ( old enough) to look after herself
7. Despite (Although) getting up early is advisable,many people get up late
8. I stopped buying ( to buy ) a news paper on my way home
9. My favourite music ( musical ) instrument is the guitar
10. He is high ( highly ) qualified . he has got his PHD recently