The candle slock burned for _________. A. twelve hours B. one hour C. a day D. twelve days
The candle slock burned for _________.
A. twelve hours
B. one hour
C. a day
D. twelve days
Thông tin: One man even used fire to tell the time. He invented a candle clock. He made a candle that took exactly twelve hours to burn.
Chọn A