Let's complete the sentences with the Past Simple form of the verbs.
26. We **went** to the cinema last week. (Мы ходили в кино на прошлой неделе.)
* Explanation: The past simple form of 'go' is 'went'.
27. How many books **did you buy**? (Сколько книг ты купил?)
* Explanation: This is an interrogative sentence, so we use 'did' + subject + base form of the verb.
28. **Were** they happy when they moved to their new house? (Они были счастливы, когда переехали в новый дом?)
* Explanation: The past simple form of 'be' for 'they' is 'were'.
29. Yes, they **were**, but their son **wasn't**. (Да, они были, но их сын не был.)
* Explanation: The past simple form of 'be' for 'they' is 'were' and for 'son' is 'was'. For the negative, we use 'wasn't'.
30. How much money **did you spend** on your camera? (Сколько денег ты потратил на свою камеру?)
* Explanation: Again, an interrogative sentence. We use 'did' + subject + base form of the verb.
31. I **spent** about $$100. (Я потратил около 100 долларов.)
* Explanation: The past simple form of 'spend' is 'spent'.
32. Where **did he find** this book? (Где он нашел эту книгу?)
* Explanation: Interrogative sentence, so 'did' + subject + base form of the verb.
33. **Did** she **have** lunch at work? (Она обедала на работе?)
* Explanation: The past simple form of the verb 'have' is 'had'. Since this is a question, we use "did she have...".
34. My parents **decided** to paint the house. (Мои родители решили покрасить дом.)
* Explanation: The past simple form of 'decide' is 'decided'.
35. I'm sorry. I **didn't do** my homework last night. (Мне жаль. Я не сделал домашнюю работу вчера вечером.)
* Explanation: The past simple negative form of 'do' is 'didn't do'.