НАПИШИТЕ УРАВНЕНИЯ ХИМИЧЕСКИХ РЕАКЦИЙ ДЛЯ СЛЕДУЮЩИХ ПРЕВРАЩЕНИЙ: C2H5OH → C2H4 → C2H5Cl → C4H10 дайте название продуктов реакций

Underline the correct tense. 1. I saw Jim this morning. He ran/was running for the bus. 2. Keri was angry. She had been waiting/was waiting for Sarah for two hours. 3. Andy was relieved to hear that he was passing/had passed the exam. 4. I was walking/had walked home when I saw Paul. 5. Brian learnt/had learnt how to spell his name at school today. 6. They hadn’t visited/weren’t visiting their grandparents for a long time. 7. I watched/was watching television when the telephone rang. 8. Jason had been thinking/had thought about his new car all day. 9. I bought the dress because I wanted/had wanted something special to wear to the party. 10. The little boy was crying because he had lost/was losing his mother. 11. Graham had been working/was working for the company for twenty years before he retired. 12. Pam opened/had opened the present and read the card. 13. Lucy wrote/had written a letter to her sister last night. 14. It had been raining/was raining all day and the roads were very wet. 15. Sue was smiling/had smiled as she was reading Mary’s letter.

В магазине продаются тетради по 96 листов и по 24 листа. Во всех тетрадях, купленных Машей, 528 листов. Сколько толстых и сколько тонких тетрадей купил Маша, если все купленные им толстые тетради содержат на 48 листов больше, чем все тонкие?