Bob called to tell his mother that he co
题型:选择题
问题:
Bob called to tell his mother that he couldn’t enter the house, for he ________ his key at school.
A.had left
B.would leave
C.was leaving
D.has left
Bob called to tell his mother that he couldn’t enter the house, for he ________ his key at school.
A.had left
B.would leave
C.was leaving
D.has left