1. ______ is one of the water sports. 为什么选BA. Water-ski B. Water-skiing C. Water-sking D. Watering-skiing为什么是B而不是其他,他们分别用在什么形式的句子中?

Football is one of ______ (world) the most popular sports. Shanghai is one of ______(large) cities in the world Beijing is one of the olaest ______ in China Most students think homework is one of the main ______(原因) of stress tom is one of the greatest ______(mind) of the age. 适当形式填空 Tianjin Tower is one of the​ _____ ______ (tall) ones in china.Tianjin Tower is one of the _____ ______ (tall) ones in china. This river is as deep as that one.(同义句)This river is of the same _______ ______ that one. 1.This is ______ song I' ve told you about.Isn't it ______ beautiful one?A.the;the B.a;a C.the;a D1.This is ______ song I' ve told you about.Isn't it ______ beautiful one?A.the;the B.a;a C.the;a D.a;the2.What ______ the forest of the USA in the last love is one of China is one of Tom is one of the people who ______ they are now.为什么填as 填空：One of the most popular ______（active）in our school is basketball. He is one of the boys who ______(like) playing basketball. The Dragon Boat Festival is one of the ______(传统的) festivals in China. The boy in the white shirt is one of my ______.(classmate)适当形式填空 Harvard University,______ in 1636,is one of the oldest universities in the United States. Li Jiang is one of the most beautiful places for you ______(live). Harvard University,______ in 1636,is one of the oldest universities in the United States.