•3. 90%-дық 30 г азот қышқылының ерітіндісі мен 13,44 л (қ.ж.) ацетиленнен алынған бензол әрекеттескенде қанша нитробензол түзіледі?
Жауабы: 24,6 г.​

) when the teacher was giving them back.
16. I've given her some silver cutlery for her bottom drawer (приданое невесты)
17. There was an elephant in the dining room (большая проблема) this evening when my brother sat down at the table with a black eye, but didn’t say anything about what had happened.
18. I was on pins and needles (сидеть как на иголках) until she called to say she had arrived in Istanbul.
19. We rolled out the red carpet (устроить торжественный прием) when the Pope visited Toronto.
20. If you try to organize an event that will appeal to both young and old, you can end up caught between two stools (потерпеть неудачу, попасть впросак)  

2. I DON'T DRINK coffee in the evening. I DRINK coffee in the morning. 3. IS your friend DOING his homework now? 4. DOES Your friend GO to school in the morning? 5. Look! The baby IS SLEEPING. 6. The baby always SLEEPS after dinner. 7. My grandmother DOESN'T WORK. She is on pension. 8. My father ISN'T SLEEPING now. He IS WORKING in the garden. 9. I usually GET up at seven o'clock in the morning. 10. What IS your sis­ter DOING  now? - - She IS WASHING her face and hands. 11. When DO you usually COME home from school? — I COME at three o'clock. 12. Where DOES your cousin WORK? -- He WORKS  at a hospi-taJ. 13. DOES Your sister STUDY at an institute? -No, she STUDIES at school. 14. My cousin GOES to school every day. 15. My mother ISN'T PLAYING the piano now. She PLAYS  the piano in the morning.