题目

完形填空It was a summer evening almost 30 years ago. Iwas rocking my baby boy in my arms and when he fell asleep I put him 1 downinto his crib for the night. My wife, tired out from a long day of work, was halfnapping and half watching TV in the living room. Not caring for the 2 ,I poured myself a glass of iced tea in the kitchen, took a lawn chair off our porch(门廊) and walkedinto the front yard to 3 the stars. As soon as I stepped onto the yard, I heard thesweet sound of 4 floated through the air. On the hill next to ourhouse, the neighbor's children were 5 fireflies (萤火虫), hopi下列说法中，错误的是（ ）A.氧气可用于潜水、医疗急救B.氧气能支持燃烧，可作燃料C.氮气充入食品包装袋内可以防腐D.稀有气体充入灯泡中可使其耐用