46.I took the book back the shop and got a better one instead.(EXCHANGED)

I took the book back the shop and exchanged another one that was better.

47. This is the most amusing book I've ever read.(AMUSING)

I've never read a more amusing book than this one before.

48.We have never met anyone as famous as he is.(MOST)

He is the most famous person (that) we have ever met.

49.My mother insistead on my doing some chores every day.(MADE)

My mother made me do some chores every day.