这个英语题为什么选D不选CMary once ( )music at the school for ten years and now is an actress.A has taughtB had taughtC has been teachingD taught二楼的,不肯帮忙就算了,还来无理取闹,真是NC

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这个英语题为什么选D不选CMary once ( )music at the school for ten years and now is an actress.A has taughtB had taughtC has been teachingD taught二楼的,不肯帮忙就算了,还来无理取闹,真是NC

这个英语题为什么选D不选CMary once ( )music at the school for ten years and now is an actress.A has taughtB had taughtC has been teachingD taught二楼的,不肯帮忙就算了,还来无理取闹,真是NC
这个英语题为什么选D不选C
Mary once ( )music at the school for ten years and now is an actress.
A has taught
B had taught
C has been teaching
D taught
二楼的,不肯帮忙就算了,还来无理取闹,真是NC

这个英语题为什么选D不选CMary once ( )music at the school for ten years and now is an actress.A has taughtB had taughtC has been teachingD taught二楼的,不肯帮忙就算了,还来无理取闹,真是NC
C是现在完成进行时,表示过去发生的事情对现在又很大影响,或者尚未结束.
看到now这个词了吗,强调他现在已经是演员了,和过去教音乐无关了.所以选过去时.

你是NC……