PRACTICE UNIT 3

1- Present perfect: Form and practice

2- Present perfect: Form

3- Present perfect

4- Present perfect and simple past

5- Present perfet and simple past

6- Present perfect and simple past

7- Present perfect and simple past

8- Present perfect and simple past

9- Present perfect and simple past

10- For and since

11- Present perfect: Form

12- Jobs

13- Jobs

14- Jobs reading comprehension