Правильно простройте предложения:
1)She was cooking dinner while her husband was setting the table.
2)I have been knowing them when I was a student.
3)She didn't believe in ghosts when she was a child.
4)Japan has been producing cars for many years.

she was cooking dinner, while her husband set the table2) I knew them when I was a student 3) вроде все правильно4) Japan produced cars for many years