Dear students

Please go to:

https://agendaweb.org/verbs/present-perfect-tense.html

Do the 11 exercises that appear there.  Then, go to:

https://agendaweb.org/verbs/present-perfect-simple-past-simple-exercises.html

Do the 14 exercises that appear there.  Then, go to:

https://agendaweb.org/verbs/present-perfect-past-simple.html

do the 16 exercises that appear there.  Then go to:

https://agendaweb.org/verbs/present_perfect_continuous-exercises.html

Do the 12 exercises that appear there.  Then go to:

https://agendaweb.org/verbs/present-perfect-continuous.html

Do the 16 exercises that appear there.

Good Luck!