2019年mba考试英语模拟题——连词923

{1}He was about to tell me the secret           someone patted him on the shoulder.      
A.as                        
B.until      
C.while                      
D.when

解析：
本题选D。

{02}
He found it increasingly difficult to read,__________his eyesight was
beginning to fall.                                        

A.though          
B.for          
C.but          
D.so
解析：
本题选B。