Question

Uzupełnij zdania odpowiednimi czasownikami : broke , carried , confirmed , crashed , deleted , discovered , invented , made , observed , switched.

1. Maria Skłodowska-Curie ........ polonium and radium.

2. Alexander Bell ....... the telephone.

3. Dian Fossey .......... gorillas in the mountain forests of Rwanda.

4/5. Galileo .......... out an experiment which ........ his hypothesis.

6. It seems that we have ........ an important discovery.

7. I ....... off the TV after the film had ended.

8. Our washing machine ........... down last night and flooded the bathroom.

9. My mother's computer ...... yesterday: it stopped responding and I couldn't make it work.

10. Oh, no! I've just ......... an important file by accident.

Answer 1

1. discovered

2. invented

3. ovserved

4/5. carried/confirmed

6. made

7. switched

8. broke

9. crashed

10. deleted