Сказка про грибы 5-6 предложений! Срочно надо плиззз! Заранее благодарю за помощь! :)

Раскройте скобки, употребляя гла­голы в Present Perfect или Past Simple.

1. Не (to be) abroad five years ago. 2. You (to be) in theCaucasuslast year? 3. They (to leave)Englandwhen he (to be) still a child. 4. He (not yet to come) back. 5. He (to go) already? 6. When you (to see) him last? 7. I (not to see) him for ages. 8. His health (to improve) greatly since I (to see) him last. 9. Last night I (to feel) tired and (to go) to bed very early. 10. Where you (to spend) your holidays? 11. You ever (to spend) your holidays in theCrimea? 12. While travelling in theCrimeaI (to meet) your friend. 13. I never (to visit) that place. 14. He (to visit) that place last year. 15. I just (to get) a letter from Tom. 16. You (to take) any photographs while travelling in the south?

Аб­со­лют­ная тем­пе­ра­ту­ра иде­аль­но­го газа в со­су­де сни­зи­лась в 2,5 раза, а дав­ле­ние воз­рос­ло при этом в 5 раз. Как из­ме­ни­лась кон­цен­тра­ция мо­ле­кул газа?

1) умень­ши­лась в 12,5 раза

2) уве­ли­чи­лась в 2 раза

3) умень­ши­лась в 2 раза

4) уве­ли­чи­лась в 12,5 раза