Many words in English can be used both as nouns and as verbs. Complete all the sentences using either the noun form or the verb form of the words given in the box. Change the form where necessary . attack chat fear match touch visit focus Please 1)_____ your minds on the following problem . She has constant 2)____ that her husband will abandon( 抛弃 )her and the kids . The 3)_____ of recent research has been on environmental issues . Her father died of a heart- 4)____ when there was no one else at home . She 5)_____ that the child may have got a blood problem . This kind of disease 6)_____ the central nervous system. She paid frequent 7)____ to her parents and they were so happy to see her every time she 8)_____ them. The blind man 9 )______ the elephant's ear and concluded that the elephant is in the shape of a huge fan . My long 10 )_____ with my mother over the phone every day has relieved a lot of my stress ,