|There are so many exercises and web pages that it is difficult to choose an appropriate one.|
So, in order to make things easier for you I have found some useful links to help your to revise the grammar and vocabulary you have to study for next exams.
Grammar in general - Study Zone - University of Victoria -Lower Intermediate - Here
Here you can read some theory and so some exercises about CONDITIONALS . You can download these activities.
Conditionals Mixed types - Here
Type 2 Conditionals - Here and Here
Type 3 Conditionals - Here and Here
Relative Sentences (adjective sentences ) - Here
Thousands of exercises in the BBC web page
A web page made by a Spanish teacher of English - Isabel Perez.
Grammar, vocabulary and pronunciation BBC learning English