Units 4 A and B: verbal tenses

Today we are going to practise more on the verbal tenses we are studying. Let's start with Simple Past and Present Perfect and later with will and going to:

•  exercise 1 
• exercise 2
• exercise 3
• exercise 4
• exercise 5

Now we can check our knowledge in the use of for or since in this link.Also we can check the use of just, already or yet
You can also revise the way in which letters are written in English by completing this one.