河南成教 / 大学英语（4）
正确率：100%
4[单选题]
We're safer on a train than we would be if we _ _ _ _ _ _ any other way.
A.traveled
B.had traveled
C.travel
D.have traveled
We're safer on a train than we would be if we _ _ _ _ _ _ any other way.
参考答案：
佳题速递：