There was more than __rain and snow last year,so some parts of

问题描述:

There was more than __rain and snow last year,so some parts of
the country have been flooded this spring.
A efficient
B adequate
C permanent
D extra

b,足够的
去年雨雪太多,所以今春有些地方早了水灾.
a,有效的,c,永久的 d,额外的