"Who does this towel belong to?" my mother asked.

-> My mother asked, " (a)   is this towel?"

I borrowed a very good book from my teacher.

-> My teacher (a)   me a very good book.

I am often given books as presents.

-> People often (a)   me books as presents.

The sea was warmer than they had expected.

-> The sea was not as (a)   they had expected

The campsite was not far from the sea.

-> The campsite was quite (a)   the sea.

Sebastian succeeded in putting up the tent on his own.

-> Sebastian was able (a)   up the tent on his own.

None of my friends enjoy reading as much as I do.

-> I enjoy reading (a)   any of my friends.

Sarah thinks the sports centre is too small for the town.

-> Sarah thinks the sports centre is not (a)   for the town.

Trainers must be worn in the sports centre at all times.

-> You must (a)   trainers in the sports centre at all times.