问题
选择题
The pot ___ for ___ hot water.
A．used; keeping
B．was used; keeping
C．is used; to keep
D．are used; keep
答案
答案：B
。本题考察被动语态，从被动语态的结构可以排除A, be used for 为/被用做…, for 为介词，故后面要加动名词,又可以排除C,D,剩下正确选项B.本句意思是：这壶是用来盛热水的