问题描述：
问题解答：
应该是he has been teaching english since 1998. 现在完成进行时呀
He taught English from 1998.
标准答案来了He,has,taught,English,since,1998.肯定用since+时间点，而且用现在完成时态
HehastaughtEnglishsince1998
He has taught English since 1998.
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