1. I've lost my key I can't enter my flat now.
2. I had lost my key and had walked in the yard before my mother came and opened the door.
3 . Why are you late today, Pete? Frankly speaking, I have overslept.
4. Pete was late for school because he had overslept.
5. After Bill had done his homework, he began playing on a computer.
6. Have you done your homework?" Mother asked me.
7. The had dog eaten all the sausages before we came home.
8. Have you eaten your breakfast today?
9. Jack had been to three countries by the time he was seventeen.
10. Have you been to Baikal?
11. Nick has read an interesting book about space this week.
12. He read five textbooks by the history exam last month.
13. I looked at the new pupil in our class and realized that I had seen him before.
14. Have you ever seen a kangaroo?
15. Have you ever broken any glasses or cups? Do you believe in superstitions?
16. The father wanted to know who had broken his favourite cup.
17. During his summer holidays Sam decided to visit the city he had lived in before.
harmless - безобидный, безвредный
more оr less dangerous - более-менее опасны
according to their shape - в соответствии с их формой
associatе (assosiated) - ассоциироваться(ются)
acute - острый
spores - cпоры
extreme of temperature - перепады температуры (temperature difference)
more favorable conditions - более благоприятные условия
destruction - разрушение
Объяснение:
объяснений не требуется, просто нужно было перевести текст, чтобы понять слова ( на будущее, сразу подчеркни эти слова в тексте и подпиши над ними перевод, так тебе будет легче их запомнить)