As a result of record low temperatures, the water pipes on the third floor froze, which caused the heads of the sprinkler system to burst, which released torrents of water into offices on the second floor.
-
Awhich caused the heads of the sprinkler system to burst, which released torrents of water
分析该选项
-
Bwhich caused the heads of the sprinkler system to burst and which released torrents of water
分析该选项
-
Cwhich caused the heads of the sprinkler system to burst, torrents of water were then released
分析该选项
-
Dcausing the heads of the sprinkler system to burst, then releasing torrents of water
分析该选项
-
Ecausing the heads of the sprinkler system to burst and release torrents of water
分析该选项