UNIT 5A - PRESENT PERFECT SIMPLE vs PAST SIMPLE

 Extra exercises:

-Certain time in the past or just / already / yet: Exercise 1, exercise 2.

-Certain event in the past or how often so far: : Exercise 3, Exercise 4.

-Emphasis on action or result: Exercise 5, exercise 6.
-Been or gone? Grammar explanation and Exercise 1
-Been or gone 2.

-Mix: Exercise 7, Exercise 08.

-You can also try these tests: test 1, test 2, test 3.