Please look at these numbers:1,3,5,------ ,11.What is the mi

从数学上来看,这是一个等差数列,公差为2.所以5+2=7；7+2=9,9+2=11.
所以缺失的属为7和9.
7的英语为seven
9的英语为nine.
所以答案为,seven,nine