Short explanation:
Short explanation: We are forming the Past Simple tense in its negative form. The full form uses 'did not' + infinitive, and the short form uses the contraction 'didn't' + infinitive.
Step-by-step solution:
- The task requires completing sentences in the Past Simple negative form.
- For the first sentence, the full negative form is 'did not go'.
- For the second sentence, the contracted negative form is 'didn't go'.
Answer: 1. I did not go to the circus yesterday. I didn't go to the circus yesterday.