Помогите, пожалуйста, с английским

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The sport of snowboarding is booming and the person responsible for this is Jake Burton. Burton, the antithesis of a hard-nosed businessman, is the president and founder of what is now a multimillion-dollar corporation. "I have the best job in the world," says Burton. "1 ride my board several days a week, the company is making money, the sport is blossoming."
Though Burton 1__________ (often call) the inventor of the snowboard, he 2_________ (refuse) to take credit for anything more than improving on somebody else's idea. He 3_________ (settle), instead, for the label 'snowboard pioneer'.
The first snow­board-like object 4_____________ (produce) by Sherman Poppen who, in 1965,
5_____________ (bolt) two skis together for his children to slide on. Poppen 6 his invention the Snurfer. Jake Burton 7 ___________--(give) a Snurfer when he was 14 years old. 'T 8_________ (always feel) there was an opportunity for it to 9____________ (market) better," he says, "for serious technology to 10____________ (apply) to it, so Snurfing could 11________ (become) a legitimate sport instead of a cheap toy." According to Jake's father, although Jake 12___________(not possess) any innate entrepreneurial spirit, once he had the idea for this board in his head, he 13____________ (put) every bit of his energy into it.
Jake Burton's teenage years 14____________ (marry) by tragedy: his older brother 15_____ (kill) in Vietnam when Burton was 12, and their mother 16__________ (die) of leukemia five years later. "The loss made for two things," says Burton, "real independence and an ability to 17 ________(persevere)." Both 18__________ (bring) into play in December 1977, when, shortly after he 19________ (earn) a degree in economics and 20___________ (leave) a small sum in his grandmother's will, he 21_________ (found) Burton Snowboards. He was 23.
In the beginning Burton 22 ___________(employ) as a barman by night and 23________ (make) snowboard prototypes by day. After constructing more than 100 тmodels, he finally had a board he was pleased with. That hurdle overcome, he had to 24____________ (convince) people to buy the things. One major stumbling block was the fact that snowboards 25________ (ban) at virtually all ski areas.
Finally, after 1983, when restrictions at many ski resorts 26_________ (loosen), snowboard sales 27___________ (climb). Now 95% of the ski areas in the US 28 _____(allow) boarding, as do all ski areas in Europe. An international circuit of snowboard racing and free­style events 29_________ (start) in 1986, and the sport 30 __________(make) its Olympic debut at the 1998 Winter Games in Nagano, Japan.