题目：
________ confidence in yourself is the biggest barrier _______ greater progress in your work. [ ]
A. Lacking of; to making
B. Lack of; to make
C. Lack of; to making
D. The lack of; to make
答案：
答案：C
________ confidence in yourself is the biggest barrier _______ greater progress in your work. [ ]
A. Lacking of; to making
B. Lack of; to make
C. Lack of; to making
D. The lack of; to make
答案：C
