I. Complete each of the following sentences with the proper form of the word given in brackets. 1. (fail) Boredom, isolation and loneliness can lead to marriage breakdowns and a __________ to complete assignments. 2. (assist) A great number of __________ in the nursing home need training in specific skills, particularly behaviour management and first aid. 3. (significant) Time has no meaning in itself unless we choose to give it __________ . 4. (concentrate) __________ is the secret of success in all the management of human affairs. 5. (depend) However strong and loving the bond between carer and __________ may be,constant caring is likely to bring some frustrations and difficulties. 6. (account) If all the financial matters can be dealt with by an __________ , it is certain that the artist will have more time to develop her art. 7. (inhabit) He wants to visit a nature reserve without a single permanent human __________ . 8. (sequence) This approach falls into five ___________ stages: topic selection;