00530nam a22001577a 4500 31546 31546 9780195620559 (pbk) 428.24 THO Thomson, A. J. A. V. Martinet A practical english grammar Exercises 2 New York Oxford University Press 2018 199 p. Includes index. English language Electrical engineering English grammar Problems Perfect infinities Propositions Indirect speech Tenses FSSH BK