
Answer — Exercise 4
3D - must, mustn't and needn't / don't have to·Solutions Pre-Intermediate - Workbook
Question
Decide whether must or have to is better in these sentences.
Answer
- must
- must
- have to
- must
- have to

3D - must, mustn't and needn't / don't have to·Solutions Pre-Intermediate - Workbook
Question
Decide whether must or have to is better in these sentences.
Answer