Hey Vasiliy, how are you? Firstly, in order to reach a better understanding, let's consider the example below, shall we?: ''The staffing committee ______ to recruit more than 100 new employees for an ambitious project this year.'' If you were to type the word ''decide'' onto the blank above, which verb form would you choose: ''decided'' or ''has decided''? Well, that seems to be a tricky question, does it not? As a matter of fact, you may use either the past simple tense (''decided'') or the present perfect tense (''has decided''), depending on what you consider to be a ''finished event''. So far as that is concerned, I shall advise you to take both options into consideration. * If ''this year'' (which refers to the year concerned) is almost over, then it is permissible to use ''decided''. In this case, you conceptualize the year as being over or past in terms of the possibility that the staffing committee recruit more than 100 new employees for an ambitious project again. So the past tense is fine. HOWEVER, the present perfect tense ''has decided'' could be said at any time during the year and is stated as one of the things the staffing committee has done, with no implication as to whether or not you think a further recruitment is possible. * Here is another example FOR YOU TO MAKE A COMPARISON: ''I watched a lot of movies on Netflix today.'' (in this case, the past tense is fine! That can be explained due to the fact that, although 'today' is not finished, you are not expecting to watch any further movies, so you conceptualize the chance of watching other movies as over or past.) ''I have watched a lot of movies on Netflix today.'' (in this case, the present perfect could also be used and would befit the context quite perfectly = that can be explained due to the fact that you might consider that ''today'' is not yet finished, and that you expect to be able to watch a few more movies on Netflix until the day ends.) Hope that helps!!!

Yes Example: I ate breakfast and I have had breakfast.