A) PAST SIMPLE AND PAST CONTINUOUS.1- Matching
2- Fill in gaps
3- Write the correct tense.
4- Write the correct tense (2)
5- Write the correct tense (3)
6- Write the correct tense (4)
7- Write the correct tense (5)
B) PAST PERFECT AND PAST SIMPLE
1- Choose the correct answer.
2- Write the correct answer.
3- Write the correct answer (2)
4- Write the correct answer (3)
C) PRESENT PERFECT AND PAST SIMPLE
1- Activity 1
2- Activity 2
3- Activity 3
4- Activity 4
5- Activity 5
D) FOR & SINCE
1- Activity 1
2- Activity 2
E) HOW LONG....? Anwer the questions
Activity
F) yet, already, just ..
Activity
G) PRESENT PERFECT SIMPLE & CONTINUOUS
Watching this video might help you understand the difference. You also have some activites below the video which you might find helpful.