Give the correct form of the word in brackets to complete the following sentences : 1, A tour of the theatre is available by prior ________ . ( arrange ) 2, There was an air of ________ about him . ( fragile ) 3, Don't let him ________ you like he did at the last party . ( monopoly ) 4, North - west of our country is a _______ region . ( mountain ) 5, It's ________ for apple trees to flower so early . ( usual ) 6, He's not very good at _______ his worries . ( share ) 7, There was a complete _______ sitting at my desk . ( strange ) 8, That afternoon we went _______ on the desk . ( skate ) 9, Popular water sports include swimming , _______ and water - skiing . ( surf ) 10, Planing permission is not ______ needed . ( usual )