A2_BAS_6_S Unit 9 Workbook: Pages 64-65

Grammar | Part 1 | Question 1

• should

• shouldn't

Grammar | Part 1 | Question 2

• should

• shouldn't

Grammar | Part 1 | Question 3

• have to

• don't have to

Grammar | Part 1 | Question 4

• must

• must not

Grammar | Part 1 | Question 5

• have to

• don't have to

Grammar | Part 2 | Question 1

• have to

• must

Grammar | Part 2 | Question 2

• should

• must

Grammar | Part 2 | Question 3

• should

• must

Grammar | Part 2 | Question 4

• don't have to

• must not

Grammar | Part 2 | Question 5

• should

• must