the water pipes in some buildings cracked and burst.but the one million people of the city thought little of these events,because they were asleep as usual that night.
A eight-kilometre-long and thirty-metre- wide huge crack cut across houses,roads and canals.
Steam burst from holes in the ground and hard hills of rock became rivers of dir.
The number of killed or injured people reached more than 400,000.
The army organized teams to dig out the trapped and to bury the dead.变简单句应该是拆成两句吧？是的，但需要记住的是，注意两句之间使用正确的连接词。你的回答是对的吗？。。。我说过了，仅供参考，至于是否百分百正确，我不敢肯定，一切需要楼主你自己定夺的！