26. Write the sentences in the negative. ** 172. Sarah made lunch for her family. 173. We went to the concert hall two days ago. 174. I helped my friend with Maths. 175. They laughed at his funny jokes. 176. David left for New York last spring. 177. Charlie met his friend at the bus stop.

Решение:

1. 172. Sarah didn't make lunch for her family.
2. 173. We didn't go to the concert hall two days ago.
3. 174. I didn't help my friend with Maths.
4. 175. They didn't laugh at his funny jokes.
5. 176. David didn't leave for New York last spring.
6. 177. Charlie didn't meet his friend at the bus stop.