V. Fill in the gaps with the correct preposition. 1. ………..the beginning of his career, Thomas Edison mostly invented telegraphic devices. 2. Mary was ………..charge of presenting our science project to the class yesterday. 3. I don’t think Evelyn can work ………..pressure. 4. Abraham Lincoln began his political career ………..the age of twenty-three. 5. I believe Sam will have a brilliant career ……….law.