21. Yes, I’ve heard about that.
No, She hasn’t.
Muhammed’s finished his stuff. (What)
Ahmed’s taken the stuff. (Who)
They’ve arrived at Cairo Airport early.
(When)
They’ve had dinner early. (When)
(What)
22. Time Expressions:
Just, already, yet: recent actions
I’ve just done my homework.
I have already met her
Have you done the shopping already?
Yet: in questions and negatives:
Have you bought the tickets yet?
Bill has not come yet.
23. Ever, never: personal experiences, mostly
Ever: at any time
Have you ever heard about this?
Never: at no time
I’ve never done the chores.
I’ve not met him so far.
I’ve sent all the emails today.
I’ve won an interview this week/month.
He has always believed everything he reads.
24. I have recently started learning English.
I have met hem lately.
We still have not received our story book.
How long: duration
How long have you been there?
For & Since:
For: duration
We have been tennis partners for three years/ days/ months…
the last … etc.
.
Since: point of time
He has lived here since 2000/ last year/ last October/ last Monday/ week
we were young
we last met
we were at school…etc .
25. Have been to / have gone to:
He has gone to France. “He has not returned”
He has been to England. “He has gone and returned”
SB Exercises