He ________ worked in a small village, maybe that was over ten years ________.
A.ago
B. ago
C.before
D. ago
E.once
F. ago
G.before
H. before
对258人提供帮助
He ________ worked in a small village, maybe that was over ten years ________.
A.ago
B. ago
C.before
D. ago
E.once
F. ago
G.before
H. before
对258人提供帮助