By the time he realizes he _____ into a
题型:选择题
问题:
By the time he realizes he _____ into a trap, it'll be late for him to do anything about it.
A.walks
B.walked
C.has walked
D.had walked
By the time he realizes he _____ into a trap, it'll be late for him to do anything about it.
A.walks
B.walked
C.has walked
D.had walked