Question

How I wish it____! If it ___in a couple of days, the crops would survive.  

A．will rain; rained	B．would rain; should rain
C．should rain; rains	D．would rain; had rained

Answer 1

B

wish后接引导的宾语从句, 用would+动词原形, 表示与将来事实相反的愿望; 再由 “in a couple of days”和 “would survive”可知, if从句要用should +动词原形或一般过去时, 表示与将来事实相反的假设。