13.______ is a series of large ocean waves caused by an underwater earthquake or a volcanic explosion.
A. typhoon B. flood C. tsunami D. drought
14. They organized serveral activities to raise money for the poor from cars.
A. Serveal activities organized to raise money for the poor from cars.
B. Serveal activities were organized to raise money for the poor from cars.
C. Serveal activities are organized to raise money for the poor from cars.
D. Serveal activities were organized to raise money for the poor from cars by they.
