Choose the correct preposition. 1 Imagine being able of/to stop a disease before it develops 2 Eye and hair colour are passed in/on through genes. 3 Your characteristics can be affected by the environment you were brought up/out in. 4 Many of our characteristics come of/from our parents 5 Thanks to/for scientists, we are learning more and more about DNA. 6 Ridding the world of diseases would have a huge impact on in our future

1. Sorry , I am late. It took me longer to get here than I expected.
2. My toothache is more painful than it was yesterday.
3. She looks about 20, but in fact she is much older than she looks.
4. Your English has improved. You speak a lot more fruently than you did, when we last met.
5. Health and happines are more important than money.
6. We always go camping, when we go on holiday. It is much cheaper than  staying in a hotel.
7. I like the countryside. It is healthier and more peaceful than living in a town.

Gaidar Arkady Petrovich was born on January 9, 1904 in the family of a teacher in Lgov. He spent his childhood in Arzamas. Arkady Petrovich graduated from infantry courses, and when the first world war and his father was taken to the soldiers, a month later he escaped from home to go to his father's front. Ninety kilometers from Arzamas he was detained and returned. Later, at the age of fourteen, he met the Bolsheviks and in 1918 volunteered for the Red army. He was physically strong and tall guy, and after some hesitation he was accepted into the courses red commanders. He had to fight in Ukraine, on the Polish front, and in the Caucasus. Fourteen and a half years he was in command of Petlura on the front of a company of cadets, and at seventeen was the commander of a separate regiment for the fight against banditry. Since the civil war Arkady Petrovich was characterized by cruelty, suffered from drinking, he was often tormented by nightmares. His child psyche could not stand the atrocities of the Civil war. 
In December 1924 Gaidar left the army due to illness after injury and concussion. He began to write books. In this case, his assistants were K. Fedin, M. Slonimsky and S. Semenov, who dealt with him every line, criticized him and explained the basics of literary mastery. 
In the autumn of 1932 Gaidar decided to settle in Moscow. In those days, he was still little known and not rich