why / visit / they / ? / us / don't составить предложение в настоящем времени

why don't they visit us?

i very much love autumn. leaves in the autumn drop out. it to be pleasant to me when i pass and underfoot those fallen down, yellow leaves creak. in the autumn weather changes, becomes more cool. all children go to school. вроде бы правильно перевел. граматических ошибок нет

1)she wasn't invited to the party by them.

2)the windows were not left open by me.

  3) the light wasn't turnud off by them.

  4)some friends have been invited to tea by me.

  5) an english book has been given me by her.

  6)have the letter been written yet?

  7) we have been told a lot of interesting things by them.