The Navajos were very good at the physical training and obstacle courses

Which of the following best describes the speaker’s feelings about america?

Which statement would you identify as being correct? a. it is important to learn the etymology of every word in a text. b. it is important to understand the etymology of every word in a text. c. it is important to study the etymology of every word in a text. d. it is important to study the etymology of some words in a text.

In the sentence above, which verb is the irregular verb? a. laid b. warmed c. removed d. walked