I''m surprised that he ____ to help me w
题型:选择题
问题:
I''m surprised that he ____ to help me when I needed his help .
A.should refuse
B.would have refused
C.should have refused to
D.may have refused
I''m surprised that he ____ to help me when I needed his help .
A.should refuse
B.would have refused
C.should have refused to
D.may have refused