Business correspondence. Dear Ms Denton, 1 (Thanks/ Thank you) for your letter of 24 May. As I am sure you will 2 (understand/appreciate), I am 3 (most upset/very sorry) to 4 (hear/learn) that you 5 (were unable to/could not) locate my suitcase. As I 6 (said/pointed out) in my original letter, the suitcase contained 7 (a lot of/many) documents that I 8 (need/require) for my 9 (work/job I have 10 (been obliged/had) to 11 (contact/get in touch with) my publishers to 12 (get hold of/obtain) copies of documents that your airline 13 (lost/mislaid). 14 (Naturally/Of course), I will 15 (complete/fill in) the Claim Form, but I 16 (find it difficult/it is not easy) to 17 (estimate/guess) the value of the documents. 18 (About/Approximately) half of them are irreplaceable. I 19 (hope/ trust) that in the meantime you 20 (are still looking/continue to look) for my case. 21 (Should you find it/If you find it), please contact me 22 (straight away/immediately). I 23 (look/am looking) forward to hearing from you.

Many people today go in for extreme sports. Perhaps, they find ordinary sports too boring and unexciting. It is also known that extreme sports help to build character and form a strong personality.

There are different types of extreme sports, for example, rock climbing, rafting, scuba diving, surfing, snowboarding, parachuting, hang-gliding, bungee jumping etc. These activities usually involve speed, height and a good level of physical training. However, they become more and more popular even among the beginners. Doing such sports people learn how to overcome difficult situations and how to survive in an emergency. It also develops patience and self-control, and helps to control your fear. More importantly, it gives the sense of achievement.

Dear Helen,Thank you very much for your lrtter. It was great to hear from you. You asked me about the books teenagers read in Rassia.               Well,as you know the books are an entirely necessary and delightful detail of human life, They play a very important role in it.People all over the world are fond of them because books  help us to find out much new, useful and interesting information or just help to relax from simple life.            As a whole it's hard to say exactly what are  the most famous books in our country but to my point of view the most famous genre which teenagers like to read is fantasy.Maybe you've heard about the books "Hunger Games" by Susan Collins The genre is the fantasy.These books are well known throughout the world and one of the most famous books among teenagers in Russia.As for me I've read all trelogy and i think these fantastic books realy must be read to be appreciated.These books'll  immerse you into its unusual world, and the gray everyday life will sparkle for you with new colors. If you didn't read them i would strongly recommended you to do that .It won't leave you indifferent believe me.                 Write soon and tell me about the books and magazines you like to read.Best wishes,Natali.