We___(learn) five lessons since the beginning of this term He___(be) a Party member for three years如题.什么知识点?什么语法?

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We___(learn) five lessons since the beginning of this term He___(be) a Party member for three years
如题.什么知识点?什么语法?

have learning
has been
考查现在完成时的知识.很简单的,找关键词,一般就是since,for之类的.

have learnt
has been
现在完成时 指从过去某一个时间到现在所发生的事(到现在仍是这样)

have learned
has been
现在完成时