Decide whether the sentences are formal or informal. If the sentence is formal, write down F. If the sentence is informal, write down I.Sentences1The project will be completed next year.2I showed that his arguments didn’t hold water. 3I wonder why he put up with those terrible conditions for so long. 4Five more tests will be necessary before the experiment can be concluded. 5It is possible to consider the results from a different viewpoint. 6It has been proved that the arguments so far are without foundation. 7He’ll have to do another five tests before he can stop the experiment. 8It is not clear why such terrible conditions were tolerated for so long. 9There are a number of reasons why the questionnaire should be revised. 10We’ll finish the job next year.