问题
选择题
_____there be a flood this summer, what would we do?
A．Should
B．Would
C．If
D．Will
答案
答案：A
在虚拟条件句中, 从句中如有 had, were, should, 这时if可以省略, 把had, were, should提前, 故答案为A。若选C项, 应把be改为were。
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