Complete the following sentence with a (compound) word derived from the one given in bracket
He seems to be（ ）enough to climb to the mountaintop in an hour. (energy)
【正确答案】：ENERGETIC
【题目解析】：
本题考查的是常见名词的形容词。
由be和enough可知，空缺处应填形容词作表语，energy的形容词形式是energetic意为“精力充沛的”。
句意：他似乎看起来精力充沛，能够在在一小时以内登上山顶。