河南成教 / 综合英语(三)
正确率:100%
5、
A. if never
B. if ever
C. if not
D. if any
He is only too ready to help others, seldom, _ _ _ _ , refusing them when they turn to him.
A. if never
B. if ever
C. if not
D. if any
参考答案:
佳题速递: