(1) As the Incas had no written language, they kept their accounts by using a system of knotted strings of various lengths and colors. (2) The sizes of the knots and the distances between them represented numbers. (3) At its height, the Incan Empire included as many as 30 million people. (4) The emperor ruled them with an iron hand. (5) He told his subjects where to live, what to plant, how long they should work, and even whom they could marry. (6) Because he owned everything, the emperor gave what he wished when he wished-and in the amount he wished-to his people. The sentences that use adverbial clauses of reason are sentences number …

Question

(1) As the Incas had no written language, they kept their accounts by using a system of knotted strings of various lengths and colors. (2) The sizes of the knots and the distances between them represented numbers.

(3) At its height, the Incan Empire included as many as 30 million people. (4) The emperor ruled them with an iron hand. (5) He told his subjects where to live, what to plant, how long they should work, and even whom they could marry. (6) Because he owned everything, the emperor gave what he wished when he wished-and in the amount he wished-to his people.

The sentences that use adverbial clauses of reason are sentences number …