... periods -Passive voice 1 - 4 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 After a theme, Ss have a test. II 4 periods -Relative Clauses 5 – 8 11 , 12 , 13 , 14 , 15 , 16 , 17 , 18 , 19 , 20. III 4 periods ... 35 (1) The (2) a (3) the (4) the (5) the (6) Some (7) the (8) some (9) the (10 ) the (11 ) the (12 ) a (13 ) Some (14 ) the (15 ) the (16 ) the (17 ) The (18 ) the (19 ) the (20) any ( 21) ... sent 9. C. must be followed 10 . C. are encouraged 11 . C. which 12 . B. that 13 . B. which 14 . A. that 15 . C. which 16 . B. which 17 . A. who 18 . A. who 13 EXERCISES I/ Use reduced relative...