Although Valentine's Day has become a global industry with more than 80 million roses sold worldwide, the origins of the day are unclear and hidden in the mists of time. A. traced back to th
Although Valentine's Day has become a global industry with more than 80 million roses sold worldwide, the origins of the day are unclear and hidden in the mists of time.
A. traced back to the ancient people
B. new enough for anyone to confirm
C. still a mystery to everybody
D. a long time ago and unforgettable