题目内容
—Why was Professor Wang unhappy recently?
—Because the theory he insisted on ________ wrong.
A. proving B. proved
C. being proved D. was proved
练习册系列答案
相关题目
题目内容
—Why was Professor Wang unhappy recently?
—Because the theory he insisted on ________ wrong.
A. proving B. proved
C. being proved D. was proved