The students in this school ___________(begin) to learn computer studies years ago.是用现在完成时还是什么时态啊》》?

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The students in this school ___________(begin) to learn computer studies years ago.是用现在完成时还是什么时态啊》》?
The students in this school ___________(begin) to learn computer studies years ago.
是用现在完成时还是什么时态啊》》?

The students in this school ___________(begin) to learn computer studies years ago.是用现在完成时还是什么时态啊》》?
have began