The second question, in the same way, Chelsea will directly participate in next season's group stage, and Liverpool (the hypothetical team you gave), the fourth in the Premier League, will go to the Europa League. The last player in the league who qualified for the Europa League would not have played in Europe.
Third, by the same token, if Paris in Ligue 1 is not in the top three of the league, it will occupy one of its own Champions League seats, and other teams will decrease in turn. The number of domestic European seats (Champions League+European Union) is inconvenient.
The fourth question is the same in China. Evergrande directly advanced to the group stage, and there was no other place in the Champions League. Beijing will go to the Europa League qualifiers.
The fifth question, according to the specific situation, depends on how many teams from the same football association will enter the competition after the qualifying match, in addition to the teams directly promoted. Generally, the clubs in our country are all in one basket in advance, so there is no mistake. After the queue is drawn, we will draw positions from the remaining groups according to which group it can fall into. Not the position first, then the team.
The sixth question, according to the new rules of the Champions League quarter-finals, the final of 1/4 will be decided by random drawing. As for whether it is the first guest or the first guest, it depends on the luck of drawing lots.
The seventh question, starting from the quarter-finals, the same country can't avoid it ~ In recent years, from the 1990s, Serie A to La Liga, and then to the Premier League, three teams have entered the quarter-finals. As the quarter-finals started, there was a distinction between the top and bottom, so there was no draw in the semi-finals ~
There are many questions, I hope I can increase my reward ~