题目

All the runners stood nervously at the starting line. All of them had prepared1 ．（ they） for this important race. The race meant more to a boy named Bill, because most of the other runners had greater speed. Could Bill realize his dream of being2 ． “all-school” runner? He would have to finish in the top 5 to win that honor. Bill’s life3 ．（ fill） with disappointment. Primary school had been a long nightmare （噩梦） for him. Of all the reading skills, he even couldn’t pick up 4 ．（ basic） one, although he had tried many times. Bill did not complain （报怨10．经检测，发现某一个体在细胞呼吸过程中释放出了CO2，则可判断此过程（　　）A．是无氧呼吸B．是有氧呼吸C．不是酒精发酵D．不是乳酸发酵