Student Level Four consists of two parts (two books) containing 16 units.
Reading Text and Comprehension & Writing Exercises - Language Grammar (1) and Exercises - Listening Comprehension Exercises - Advanced Expression - Language Grammar (2) and Exercises - Writing and Research - Extended Reading Student Level Four, in both its parts, includes four tests (after every four units). At the end of Student Level Four, there is a list of vocabulary for each unit, and another list of vocabulary for this level arranged alphabetically. It also includes listening comprehension texts, and is accompanied by an audio supplement on a CD, nearly eight hours long, for all texts and some exercises at this level.
