wave

01. The [waves] crashed against the rocks.

02. He [waved] his hand good-bye as the train left the station.

03. The policeman [waved] them on when they slowed to see what had happened.

04. People were jumping up and down, and [waving] flags as the athletes marched into the stadium.

05. The laundry [waved] in the wind as it dried on the clothesline.

06. At least two people have died as a result of the heat [wave] which has hit the northeast United States this past weekend, with temperatures reaching up to 40 degrees.

07. California is experiencing a new [wave] of immigration from Hong Kong and Mainland China.

08. Homer observed that a small rock holds back a great [wave].

09. Elephants communicate in sound [waves] below the frequency that humans can hear.

10. I felt a little nervous in the kayak when we started getting into some big [waves], but everything went okay.

11. Lake Titicaca in Peru is so large that it has [waves], like the sea.

12. All modern humans evolved in Africa, and then spread out across the globe in several [waves] of migration.

13. The Earth's shorelines represent a dynamic system which is continually being modified by the forces of ocean [waves] and currents.

14. [Wave] action is the major agent of erosion along coastal areas.

15. The [waves] at Long Beach are great for surfing.