A. Read the following passage. For each question, complete the notes with NO MORE THAN TWO WORDS

This article is about how much (33)__[color1]__ has changed over the years. Nearly 60,000 years ago, riders had to use a paddle to control the (34)__[color2]__ across dangerous waters. Today, boats are more (35)__[color3]__ because they have engines.

Riding a (36)__[color4]__ without a saddle is called riding bareback. People started using saddles to make it more (37)__[color5]__ and easier to control the horse.