---Hurry, John! ---Oh, damn! Both my leg
题型:选择题
问题:
---Hurry, John!
---Oh, damn! Both my legs are nearly to give out. I ____for hours.
A.had walked
B.walked
C.have been walking
D.am walking
---Hurry, John!
---Oh, damn! Both my legs are nearly to give out. I ____for hours.
A.had walked
B.walked
C.have been walking
D.am walking