【高二英语】Lightningflashedandrainwaspouringdown.Itlookedasiftheheaven___open.
Lightningflashedandrainwaspouringdown.Itlookedasiftheheaven___open.
A.hadbeenbroken
B.hasbeenbroken
C.wouldbebroken
D.isbroken
请问为什么选A而不选其它项?