问题
选择题
There was a _____ look on his face. He found what the expert said too difficult to understand. [ ]
A. puzzle
B. puzzling
C. puzzled
D. to puzzle
答案
答案:C
There was a _____ look on his face. He found what the expert said too difficult to understand. [ ]
A. puzzle
B. puzzling
C. puzzled
D. to puzzle
答案:C