Question

【题目】— Why are you late for the meeting?— We took a taxi as soon as we went out. But _________, we still didn't arrive on time.
A.luckily
B.unlucky
C.unfortunately

Answer 1

【答案】C
【解析】句意：---你为什么开会来这么晚？---我们一出来就打出租车，但是不幸的是，我们仍然没有按时到。luckily，adv幸运地；unlucky，adj不幸的；unfortunately，adv不幸地。修饰句子用副词，根据句意，所以答案是C。