Tbi Stan 26 Juni 2020

The document contains a reading comprehension test with two passages and questions about each passage. It also contains sections on language structures and error recognition. The first passage is about the accidental invention of the phonograph by Thomas Edison in 1876 while trying lớn improve a telegraph repeater. The second passage explains the basic principles of radar and how it uses radio waves instead of sound waves lớn determine the distance and tốc độ of nearby objects. It provides concise explanations of the answers lớn sample questions about each reading passage and analyzes examples of correct and incorrect language structures.