The key to exercise solutions in chapter Unit 5 - Food for thought for the textbook Engage B2 with Exam Skills with authors Barbara Bettinelli e Jane Bowie from Pearson Longman
Question
Complete the rules.
Answer
To talk about necessity in the past we use needed to and had to.
We use didn’t have to, didn't need to, and had no obligation to to talk about lack of obligation in the past.
When we use didn't need to, it means that we did something that wasn’t necessary.
