It was raining hard. he didn’t have an umbrella.A. UnfortunatelyB. LuckilyC. BecauseD. So

问题补充：

It was raining hard. he didn’t have an umbrella.

A. Unfortunately

B. Luckily

C. Because

D. So

答案：

(答案→)A. Unfortunately

B. Luckily

C. Because

D. So

解析：天气正在下着大雨，他没带伞应该用不幸的单词才符合题意，unfortunately表示此意，故本题选A。