DESPITE MANY CHANGES IN HIS LIFE, HE REMAINED LOYAL ………. HIS WORKI...

13. - DE KIEM TRA 8 TUAN K11
Tiếng Anh DE KIEM TRA 8 TUAN K11

13. Despite many changes in his life, he remained loyal ………. his working principles.

A. for B. to C. with D. about