In his autobiography, Mr. Johnson ____ his second career, taken up at the age of sixty, as the happiest time of his life when his creativity was exercised to the full. A. looked into B. looked back on C. looked at D. looked down
【简答题】Using this alphabet, you must try to identify a regular pattern in the letters given. Once identified you must continue this pattern, filling in the empty brackets. D/F H/J L/N P/R () ()