Here are the answers to the grammar exercise, putting the verbs in the Past Simple:
- Dr Frankenstein met Captain Walton on the ice.
- Agatha Christie wrote over thirty novels.
- Arthur Conan Doyle created the detective, Sherlock Holmes.
- Did you help Cory with his homework?
- Hercule Poirot was a Belgian detective.
- Sherlock Holmes wore a cape and smoked a pipe.
- The professor and Axel found a mysterious message.
- Hercule Poirot caught many criminals.
- How did Axel and the professor travel?
- Did Miss Marple live in England?