Study this accident scenario. Then produce a similar diagram illustrating the causes of a common type of accident in your own industry or technology. An operative working in a boiler fails to see a warning light when he is distracted by a call on his mobile phone. The boiler explodes soon afterwards

 I'm writing you to tell how did I spend that weekend. At first I should say that I didn't visit my grandparents because I spend all of the time here in city. I went to the zoo where we saw a lot of funny animals also I went to the cinema all that we did together with my friend(name). That was awesome Saturday. On Sunday I was riding a bike I've been in almost all city sights and saw beatiful scenerys.
Don't think I forgot my grandparents I'll visit them on next weekend, and also will help them with their cleaning and housework.

Я пишу,чтобы рассказать вам как я провела выходные. Во-первых,я должна сказать, что не посещала моих дедушку и бабушку, потому что провела все время здесь, в городе. Я ходила в зоопарк,где видела много забавных зверюшек, также я ходила в кинотеатр, все это было сделано с моей подругой(ее имя).Это была прекрасная суббота. В воскресение я каталась на велосипеде, я была почти во всех примечательных местах города и видела замечательные пейзажи. 
Не думайте,что я забыла своих бабушку с дедушкой, я посещу их на следующей неделе, также я им с уборкой и домашними делами. 

 My favourite holiday is my birthday. On this day I get up early, but by that time my mother already cooks food for a festive table in the kitchen. In the morning my family and friends begin to give presents and congratulate me. My parents and younger brother always want me to remember this day for a long time that’s why they decorate the flat with many-coloured little balls. On this day a lot of my friends and relations usually come to see me. When we all get together we sit down to table and begin to celebrate my birthday. Everybody has a good time dances and communicates with each other, the music plays loudly. At the end of the holiday we turn off the lights and my father brings a big cake with candles. I must blow out the candles and make a wish. After that we have tea with a cake and then we dismiss the guests. I would like to celebrate my birthday every month because all our relations and friends can meet together on this day. I grow up every year but my birthday always remains the most unforgettable holiday of the year.