问题
选择题
Alice fixed her eyes upon Bob, there was an expression __ that he could not understand.
A.in it
B.on them
C.in them
D.on it
答案
答案:C
Alice fixed her eyes upon Bob, there was an expression __ that he could not understand.
A.in it
B.on them
C.in them
D.on it
答案:C