Read the following text. In most lines, there is an unnecessary word, a word missing or an incorrect word. For each numbered line (1-10), identify the mistake and write the correct word in the space on the right. Some lines are correct. Indicate these with a tick (✓).

1.They all appreciated an importance of showing the world what really
2.happens during this major conflicts and world crises, so they decided to
3.produce the best documentary photography at thistime. Cartier-Bresson
4.once commented ‘Some photographers tell the news step by the step as
5.if making an accountant’s statement.’ He and Magnum, on the other hand,
6.felt that the news had to be shown in that way that would engage most
7.the people who are unable to experience world-changing events at first-hand.
8.Tragically, within a decade of the start of Magnum, the half of its original
9.founders died while covering other wars. However, agency had started to
10.employ other top-class photographers and its work was sure to continue.