Here is   documant with a small grammar guide on the future simple with WILL , then plenty of exercises to pratise( positive  negative and interrogative sentences , sentence building and correcting)

future-simple-2-page-lesson-and-practice-grammar-drills-grammar-guides_84023.doc

Future simple : 2 page lesson and practice

future-simple-2-page-lesson-and-practice

Let's do English ESL general grammar practice. Here is   documant with a small grammar guide on the future simple with WILL , then plenty of exercises to pratis…