There is a much used device in teaching called the cloze exercise [or test], in which numbered gaps are left in a text, sometimes with a clue, and the idea is to fill in the gaps.
Anyway, to the material and the exact time frame is by no means established – some estimates say 250 years:
Six Hyksos kings ruled for 108 years c. 1655 – 1547 BC
And here’s the quiz [sorry if it’s so simple as to insult the reader]:
The kings proclaimed themselves pharaohs with all the regalia and tradition attached to that title and in the more than a hundred years they ruled  n____ Egypt. it was mainly a time of peace and prosperity.
A large advantage in combat was their introduction of  h____ (a new animal to the Egyptians) and improved weapons. Control seemed to be through the middle Egyptian town of  H____ and thus it divided the Nile Valley into two parts, with the Egyptian dynasties numbers  __ and  __ ruling the south.
There seems to have been little hostility between the two parts until the last 20 years, after a century of relatively peace. The XXth dynasty of Egyptians (possibly from the  A__dos region) may, with time, have been vassals to the Hyksos and were then taken over by the contemporary YYth from  T____ who started the liberation war that finally wiped out the Hyksos from Egypt.