11.   Few details of the mystical ceremony are known to the public.

12.   For reasons best known to herself, she Decided to sell the house.

13.   For reasons best known to them, they offered the case to me.

14.   For reasons best known to themselves, my parents were vehemently opposed to the idea.

15.   Further, the buyer must have made known to the seller the particular purpose for which he was buying the goods.

16.   Ginger was one of the earliest oriental spices known to Europeans.

17.   He has been known to storm out of meetings on several occasions.

18.   However, in spite of that, the availability both here and in Britain should be known to the public at large.

19.   If so, there is little likelihood that it will ever be known to us.

20.   In most sexual offences, the attacker is known to the victim.