Rewrite the sentences. use mine,yours,his,hers,ours,theirs.

This pen is mine. that copybook is yours. those trainers is his. this bag is hers. these apples are ours. that ball is theirs.

1.all
2.all
3.Every
4.all
5.every
6.eall

Some cosmonauts call the moment of returning to Earth a "second birth": after landing, they need time to get used to walking on a hard surface and recover physically. One needs a clock for this, one for a day.

The most difficult part of landing is not even the moment of contact with the Earth, but the entry into the dense layers of the atmosphere, when the cosmonaut experiences overloads of inhibition, that is, negative acceleration. After returning, all astronauts experience severity in the body, someone passes quickly, others hold up. After landing, I developed vestibular disorders, when I shake my head, and you feel nauseous. For cosmonauts, it quickly passes - a day, two, and all. They get used to the Earth quickly.

When returning to Earth, space explorers should take precautions.

Потому что, у иностранцов так сказать, "язык по-другому поставлен". У них свой акцент речи. У англичанина и американца тоже совсем другие звуки, хотя язык почти одинаков, только некоторые слова отличаются. Ну и можно сделать вывод, что наши просто читают, чтобы просто прочитать, они не проверяют слово за транскрипциею.