| No | Line | Type of error | Text | Correction |
| 1 | 269 | Tense | f the same sex, and once they have achieved that in Denmark and are getting close to that in | achieved |
| 2 | 487 | Tense | he States, now in their 40's, arrived at the point of arrived at the point of | are now experiencing |
| 3 | 348 | Tense | ss, I hope some of my guesses were correct and at least partially answered | are |
| 4 | 695 | Tense | ury when the tobacco industry has become a very profitable business. Members of the govern | became |
| 5 | 693 | Tense | came cheaper and cheaper, it was getting was getting more and more common and | became |
| 6 | 693 | Tense | However 0 as tobacco was getting was getting cheaper and cheaper, it | became |
| 7 | 695 | Tense | f of smoke./^t/This situation has changed in the beginning of the 20th century wh | changed |
| 8 | 699 | Tense | ovement in L.A., the campaign has changed . The model of a rebel young m | changed |
| 9 | 697 | Tense | t/The invention of television has created a perfect opportunity for a new addictive operati | created |
| 10 | 818 | Tense | If it were all it does 0 television would by all means be | did |
| 11 | 180 | Tense | ng./^t/This conviction, which was drifting around somewhere in the child's psyche, may sudde | drifts |
| 12 | 466 | Tense | k medical advice in case they felt not well or had even mild | feel |
| 13 | 269 | Tense | nged. At first, gay activists were fighting for anti-discrimination rights in school, work an | fought |
| 14 | 695 | Tense | s I and II. Tobacco companies were generously giving cigarettes to soldiers as their " participat | generously gave |
| 15 | 662 | Tense | d to be said that the person was given some mysterious herb and lost | had been |
| 16 | 756 | Tense | nd, could be accepted if they did not prove their quality and efficiency all over the world. | had not proved |
| 17 | 503 | Tense | ople {including children} and has raped some of them and eaten parts of their bodies./^t/ | had raped |
| 18 | 610 | Tense | t is because the music itself became aggressive, so it requires an appropriate | has become |
| 19 | 610 | Tense | irst of all, background music ceased to be background . Oppo | has ceased |
| 20 | 512 | Tense | present medical knowledge enabled mankind to control 0 plagues | has enabled |
| 21 | 445 | Tense | times no one ever questioned it 0 but the twentieth century | has ever questioned |
| 22 | 512 | Tense | 0 plagues and made them feel safe about it . | has made |
| 23 | 369 | Tense | if everybody secured secured herself or himself | has safeguarded |
| 24 | 681 | Tense | of December 31 traditionally became the synonym of havi | has traditionally become |
| 25 | 445 | Tense | e family. It is true that it undergoes many changes and is not unequivocal, e.g. the num | has undergone |
| 26 | 238 | Tense | , they use drugs because they became addicted and cannot stop using them. Drugs | have become |
| 27 | 852 | Tense | g opened in Britain, and they become very popular. Nobody accuses India of attacking ( | have become |
| 28 | 238 | Tense | cannot stop using them. Drugs started started to be their way o | have become |
| 29 | 134 | Tense | t here. Recently there are more and more instances of activities of the inte | have been |
| 30 | 671 | Tense | 'Flower Children' some of us are convinced that marriage is obsolete and useless. | have been |
| 31 | 259 | Tense | ws that all of his/her organs had been affected by the tumor, he/she may easily break do | have been |
| 32 | 117 | Tense | all these negative phenomena deepened and they result in the incr | have deepened |
| 33 | 4 | Tense | highly regarded for centuries depreciated , there are many people who represent the opinion | have depreciated |
| 34 | 210 | Tense | ty of modern art some artists started to forget that 'visual art is visual' 0 | have started |
| 35 | 487 | Tense | he midlife crisis and started questioning the materialistic philosophy they wer | have started |
| 36 | 135 | Tense | , what is more 0 it becomes more and more dangerous. Such a debile p | is becoming |
| 37 | 454 | Tense | to adopt children. The issue is now discussed in several countries. However, there are several | is now being discussed |
| 38 | 480 | Tense | no longer a generation which was shown the patterns to follow. Now their heroes ar | is |
| 39 | 652 | Tense | unrestrained use of alcohol is making psychological cripples and chronic sufferers out | makes |
| 40 | 230 | Tense | which steal or mug for other individuals for money./^t/The second re | mugged |
| 41 | 44 | Tense | ng belief in others when they have realised they were lied | realise |
| 42 | 279 | Tense | fferson and George Washington had realized the power of the cultivation of the hemp plants a | realized |
| 43 | 739 | Tense | Nowadays, people who have been searching for the sacred in their lives or for any religiou | search |
| 44 | 325 | Tense | y , and other pills had seriously increased . People raised their egos throu | seriously increased |
| 45 | 230 | Tense | to the safety of its citizens has started with the changes brought about by Poland's transf | started |
| 46 | 230 | Tense | gular gangs which steal or mug for other individuals for m | stole |
| 47 | 281 | Tense | do what you want, even if it is illegal 0 but does not harm | was |
| 48 | 752 | Tense | /^t/Fast food restaurants have been unknown until recently in Poland, but they have b | were |
| 49 | 845 | Tense | world, but the chances are it became an issue for strictly political and economic reas | will become |
| 50 | 598 | Tense | an enlightened age and women have won their independence years ago. After a long, bitte | won |