Two middle-aged passengers fell into the sea. ________, neither of them could swim.
A. In fact B. Luckily C. Unfortunately D. Naturally
Two middle-aged passengers fell into the sea. ________, neither of them could swim.
A. In fact B. Luckily C. Unfortunately D. Naturally
C
从所给题的上下文分析，两人落入水中，又不会游泳，这是很不幸的。