Ответ:

22. d) are being studied by national scholars

23. c) The total area of the settlements is difficult to believe

24. b) Scholars have to work for nearly two weeks to get to the first artifacts.

25. a) Each family had an object that was believed to have magic power.

26. a) the number of people involved in the project

Ответ:

даже после перевода текста я не уверена, что 100 процентов правильно

перевод могу скинуть.