Lesson 1. Inventions and Discoveries » 9

9. Read and choose the correct variant. 1) Do you think that life on Mars really...? A. exists. 2) Give me a good… and I'll agree with your opinion. B. reason. 3) Alfred Nobel ... dynamite. A. invented. 4) Do you know who ... penicillin? D. discovered. 5) When I grow up, I'll become a famous.... C. inventor. 6) Only a century ago people believed that space travel was... . B. impossible.