1. Contrast, because it shows the differences in their emotions. Also, vary means differ.
2. Wave, because a wave is a gesture that someone does when greeting another person. Apparently, the narrator didn’t notice his friend wave to him.
3. Submit is another word for “give way to” or “yield,” so your answer is D, accept.
4. Familiarize, because the narrator is saying they want to acquaint, or become familiar with the map.
Hope this helped :D
