After studying unit 16 on conditionals and reporting speech I learned that there are five main conditionals and that reported speech can be difficult to explain to students...
I understood this unit pretty easily because of simple but well detailed explanation and samples which gave me an idea how each tenses of sentences are structured...
The first part regarding speach I felt was pretty self explanatory so I really got nothing interesting to say about it and really no criticism either...
Unit 8 presents a review of the various aspects of the future tense and describes it as one of the most complicated tenses due to the variety of ways we can express the future...