18英语选择具体为什么选择他,you'd better take your umbrella with you _______it rainsA in case B as if C unless D in order that英语选择具体为什么选择他,
问题描述：
18英语选择具体为什么选择他,
you'd better take your umbrella with you _______it rains
A in case B as if C unless D in order that
英语选择具体为什么选择他,
答
A,以防
答
选A.in case
as if :1.犹如;好像
unless:1.如果不,除非
in oder that （不详）