
Answer — Exercise 5
Progress Check 6·On Screen B1+ - Student's Book
Question
Choose the correct items.
Answer
- mustn't (it's forbidden)
- can't be (negative logical assumption)
- couldn't (past)
- should (advice)
- don't have to (it's not necessary)

Progress Check 6·On Screen B1+ - Student's Book
Question
Choose the correct items.
Answer