5. Write sentences with used to to explain why these sentences are false. 1) Marco Polo went to China in a helicopter in the 13th century. 2) People didn’t use to travel by helicopter then. 3) Isaac Newton used an electronic calculator in 1680. 4) In 1898 Marie Curie sent a text to her husband saying ‘I discovered radium!’ 5) Shakespeare wrote his plays on a tablet.

1. Marco Polo didn’t use to travel to China in a helicopter in the 13th century. People used to travel by land or sea.
2. People didn’t use to travel by helicopter then because helicopters didn’t exist.
3. Isaac Newton didn’t use to use an electronic calculator in 1680 because electronic calculators didn’t exist.
4. Marie Curie didn’t use to send a text to her husband in 1898 because mobile phones and text messaging didn’t exist.
5. Shakespeare didn’t use to write his plays on a tablet. He used to write them by hand.

These statements are false because the technologies mentioned were not available in those historical periods.