21 November 2017

Who has worked for the CIA?





PRESENT  PERFECT 

 I’VE  DONE my History homework. Now, I have time for hanging out with my friends.

* Emphasis in a completed action and

* Results

PRESENT  PERFECT  CONTINUOUS  OR PROGRESSIVE

I’m so tired. I’VE  BEEN  DOING my homework all afternoon

* Emphasis the action in itself and
* Duration of the time that an action takes

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