The key answer of exercise 1
The key to exercise solutions in chapter 2c - Grammar in use for the textbook On Screen B1+/B2 - Student's Book with authors Virginia Evans and Jenny Dooley from Express Publishing
Question
Match the modals in bold to their uses.
Answer
- should / ought to = advice / suggestion
- mustn't = prohibition
- must / have to = obligation / duty / necessity
- don't have to / needn’t = lack of necessity