...__________.A. writesB. does writingC. is writingD. does write答案B.上句可以简写成As I know, at least, he spends as much time playing as he does writing.问题是:he spends as much time playing as he does writing. 这句结构不能理解。1)比较级是as...as, 这里如何理解as...as...
with red as its main category,yellow ,white and other colors as its secondary category书上说说根据省略原则可以变成with red as its main category,yellow ,white and other colors secondary。请问是什么省略原则?