国家开放大学 / 综合英语（3）
正确率：100%
On the way back, it was snowing so heavily that I couldn’t see anything ahead of me except the footprints I _ _ _ _ _ _ _ on my way to the river.
A. have made
B. make
C. had made
D.was making
A. have made
B. make
C. had made
D.was making
参考答案：
佳题速递：