Unit 14a Ex.1 p.102
Unit 10a. p.97 ex.9
Unit 10a. p.97 ex.8
Holiday plans. P.96 ex.2b
Extensive reading, p.93 ex.2a
Unit 9 English in use. P.92 ex.4
English in Use 9. p.92 ex.1
Unit 12a, p.94 ex.1
Unit 16b, p.128 ex.1
Unit 16a, p.126 ex.3
