单选题 Man uses the energy for everything from flying to the moon to ______ about it.
【正确答案】 C
【答案解析】 from flying to the moon to… about it. 这句中from ….to…的to 是介词，因此应加名词或动名词，若选b那么thought(想法) 前应加the才对。Fly to the moon固定短语飞上月球。