I have five colour pencils,one is red,another is blue and ___three are green.

题目

I have five colour pencils,one is red,another is blue and ___three are green.
选项：A.the other
B.other
C.the others
D.others
为什么是A？

答案

首先这里作为形容词,排除了c,d,再者共5个,已经说了2个剩下的3个应该是特指,所以应加the,所以选a