что появилось раньше танкер или ледокол

На сколько джоулей увеличится внутренняя энергия пяти молей идеального одноатомного газа при его изохорном нагревании от 13 до 33 градусов по цельсию

3 в степени 5x+2 = 81 в степени x-1

Раскройте скобки, используя Present perfect continuous.
1. "What (you do)t oday? 1 (play) tennis.'
2. How long (you study) English?
3. How long (die journey take?)
4. I suppose (she be) in London next week.
5. John (phone) your office for you.
6. (There be) a lot of people at die meeting?
7. What time (die race start?)
8. He (never agree) to your idea.
9. You (never see) your money again.
10.What's die matter? (I phone) die doctor?
11 .Don't worry. I (pay) for die damage to your car.
12.(You be) at home tomorrow?
13.The company (not give) you an extra day's holiday.
14.Don't touch that! You (hurt) yourself!
15.There (not be) any newspapers tomorrow.