Question

We would have to put off the visit to the Water Cube ---- it rain tomorrow. A.were B.would C.should

这道题为什么选C?

Answer 1

C.should - 如果（不一定是， 也是假如的意思）明天下雨的话 意思， 也可以用 in the event that

Answer 2

if 引导的非真实条件句中有were, should, had时可把if省略，把were, should, had提到主语之前

追问

为什么不能用would这个词?
Thanks.

追答

这题从句是句---- it rain tomorrow，省略了if 只能提前would.还原后的句型为 If it should rain tomorrow ,We would have to put off the visit to the Water Cube .
在这种对将来的假设条件句中，可用一般过去时、were to do、should do 这三种形式，没有would do 结构

Answer 3

你这题不完整啊，老大