1.Radio was invented by Popov in Russia.
2.A new president is elected every four years in the USA.
3.The books have already been packed.
4.My clock was not repaired by George.
1.Radio was invented by Popov in Russia.
2.A new president is elected every four years in the USA.
3.The books have already been packed.
4.My clock was not repaired by George.