Practical grammar material. The Present Simple (Indefifnite) Tense, The Present Continuous (Progressive) Tense, The Present Perfect Tense exercises. The first task is called "Missing words and prepositions". Students have to choose necessary words and prepositions from given ones and put them into the given sentences. Task #2 is called "Open the brackets". Students have to open the brackets, use the appropriate Tense and define this Tense. In the 3rd task students will have to put words in order to make up sentences. Task #4 is also called "Open the brackets". Students have to open the brackets, use the appropriate Tense and define this Tense.