The correct word to complete the sentences that follow is eventful. The evidence is shown in the passage. The first paragraph reads "the second half of the seventeenth century was full of constant religious and political upheaval". Then, the second paragraph mentions that the Glorious Revolution took place in 1688 and consequently forced out the Catholic king James II. What is more, Protestantism was also brought back to Great Britain. Thefore, a lot of events happened in the seventeenth century making "eventful" the correct choice.
