C364 Difficult Issues

"This... "This..." Wu Xu was unable to answer this thorny question, so he looked at Zhang Mengmeng, who was sitting beside him, with a pleading look.

Seeing that Wu Xu seemed to want to say something, but hesitated, Zhang Mengmeng answered for him, "Grandfather, you don't know, a good bird chooses a tree, while a good subject chooses his master