Study the sentences from the interview on page 12. Then choose the correct answers to complete the rules.
People used to watch the best pole-sitters.
Before, people didn't use to have smartphones.
Did people really use to buy pet rocks?
RULES 1. We use used to + infinitive when we talk about a regular action or state in the past which we do / don't do now. 2. The negative form is didn't use to/didn't used to. 3. The question form is Did...use to/Did used to. |
1. don’t do
2. didn’t use to
3. Did … use to
Trả lời bởi Nguyễn Việt Dũng