_________, he knows a lot about space and satellite
A.A child as he isB.As he is a childC.Child although he isD.Child though he is在线课程D
考查as，though引导的倒装句，可以提前名词，动词，形容词，副词，+as/though+主谓，如果提前名词，名词前面不加冠词，句意是：虽然他是孩子，他懂的很多关于太空和卫星的事。选D。