问题补充：
--- The earthquake last night was really terrible.
--- , no people were injured or killed, and they escaped in time.
A. Hopefully
B. Luckily
C. Sadly
D. Unfortunately
答案：
A. Hopefully
(答案→)B. Luckily
C. Sadly
D. Unfortunately
解析：考查副词：A. Hopefully有希望的，B. Luckily幸运地C. Sadly难过的，D. Unfortunately幸运地，句意：--昨晚的地震真的很可怕。--幸运的是，没有人伤亡，他们都及时的逃脱了。选B。
