Перевести эти предложения в вопросы ,а потом в косвенную речь! a)books were first printed in the 15th century b)printers started printing books in thee countries at the same time . c)there days anyone can read books on cds. d)columbus discovered america five centuries ago. e)the internet provides us with access to any library all over the world . f)not long ago people living in one part of the world didn't know much about the life of people in their neighbouring countries.

a) Were books first printed in the 15th century?
 He asked if books had been first printed in the 15th century.
b) Did printers start printing books in three countries at the same time?
He asked if printers had started printing books in three countries at the same time.
c) Can anyone read books on CDs these days?
He wanted to know if anyone could read books on CDs those days.
d) Did Columbus discover America five centuries ago?
He wondered if Columbus had discovered America five centuries before.
e) Does the Internet provide us with access to any library all over the world?
He asked if the Internet provided us with access to any library all over the world.
f) Didn't people living in one part of the world know much about the life of people in their neighbouring countries not long ago?
He wondered if people living in one part of the world hadn't known much about the life of people in their neighbouring countries not long before.