— When did Mr Green teach in China?
— .
A. Since five years ago
B. For five years
C. In five years
D. Five years ago
网友回答
A. Since five years ago
B. For five years
C. In five years
(答案→)D. Five years ago
解析：本题为一般过去时，能回答一般过去时的句子，只有D，AB是回答现在完成时的，C是回答一般将来时的，故选D