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to remember where he knew him from. A staring B inspecting C seeing 3. Linda, …….. is very keen on computers, is studying to be a graphic designer. A. who B that C which 4. Harry is very ……… to his friends and will never disappoint them. A. caring B. patient C. loyal 5. The birth of their baby son brought ……. many changes to James and Lilly’s life. A. off B. up C. about 6. When Helen got to the station, the train …….. . A. just left B. had just left C has just left 7. Unless you …….. me what’s wrong, I can’t help you. A. don’t tell B. tell C. ‘ll tell 8. Some tracs on this CD are extremely ……….. . A. perfect B. excellent C. impressive 9. You …….. see a dentist about that toothache of yours. A. better B. should C. ought 10. Emma’s friend lives very close to her, so she always goes to her house …….. foot. A. by B. on C. with 11. Our teacher made the whole class …….. back after school. A. to stay B. stay C. staying 12. She said she ……. away the following weekend. A. was going to be B. had been c will be 13. Environmental organizations work towards the ………… of the natural environment. A. emission B. conservation C. adoption 14. These jeans are too big for you; you need to take them ……… . A. in B. up C. out 15 How long …….. about this? A are you knowing B do you know C have you known 16 Melanie wishes she …… the offer they made her. A would accept B accepts C had accepted 17 Marco wants to improve his listening skills in English, so he watches English films without ………. . A subtitles B scripts C headings 18 You can’t use the printer; it’s ……….. of order. A away B out C down 19 Someone’s left the front door open; I …… it immediately. A ‘m closing B ‘ll close C ‘ll be closing 20 Mildred’s out …….. some errands; do you want to wait for her? A having B going on C running 21 Stephen told his brother ……… his laptop without asking him first. A don’t use B not to use C to not use 22 The book I’ve been reading ………. in the future. A sets B has set C is set 23 Tom’s starting ………. at his new job is 30,000 euros a years. A salary B debt C wage 24 fruit and vegetables are rich ………….. vitamins and minerals. A on B of C in I’m afraid I don’t have time to chat. I ………… in a few minutes. A am leaving B leave C going to leave 26 ian was jogging in the park when he ………… someone calling for help. A heard b was hearing C had heard 27 It was such a pleasant surprise to run ……….. my old teacher at the theatre! A over B into C away 28 lucy ….. to an Indian restaurant before, and she’s really enjoying it. a has never been B. has never eaten C has never gone 29 Sarah wants to …….. in her school’s singing competition. A participate b attend c apply 30 Tonya was making a salad …….. her sister was laying the table A until b while C after 31 The ground was covered ……….. fallen leaves. A of B with C by 32 The stories we heard about our neighbours ……… to be true. A turned out b made up C went off 33 The giant panda is a(n) ……… species that needs our protection. A fatal b harmed C endangered 34 If I had known you were coming, I …………. something for dinner. A would have cooked B would cook C had cooked 35 Judy needs to replace the lens in her camera, because it’s ……… . A charged b scratched C jammed 36 They heard someone screaming in the next room and ……………. in to see what was wrong. 37 It’s no use crying over spilt ………; there’s nothing we can do now. A water b tea c milk 38 Our hotel room had an amazing ……… of the snowy mountains. A scenery B view C setting 39 The law clearly states that all car drivers and passengers ……….. wear a seat belt. A may B can C must 40 George’s classmates often pick ……… him because he’s quite short. A on B at C to 41 ……………….. Alex will like his present? A Do you think B Are you thinking C Can you think 42 Tom Barney, ……. father is a famous writer, is in the same class as me. A which B who C whose 43 The parcel ………… to you as we speak. A is being delivered B is delivering C has been delivering 44 drinks that contain …………. additives are not good for your health. A fake B creative C artificial 45 Mark …………… at a company for seven years before he started his own business. A has been working B was working C had been working 46 peter feels very strongly …………….. protecting wildlife that is under threat. A about B for C of 47 Matthew works ………… hours than Patrick. A longer B longest C more long 48 When Chris won lottery, he decided to ……………. on a new car. A splash out B catch up C hand out 49. I’d hate ………. the one who gives Janet the bad news. A to be B being C to being 50. You need a new pair of sport shoes; these ones are quite ………… . A given up B worn out C cut in

Перед человечеством сегодня стоит много экологических проблем. Они частично связанны с жизнедеятельностью человека.

1.Вырубка леса.
2.2.Истощение почвы.
3.Опустынивание земель.
4. Истребление животных
5. Формирование твердых отходов.
6. Вода. Вырубка лесов приводит и к еще одной проблеме это проблема нарушения водного баланса Земли.
7. Загрязнения воздуха.

Вот такие главные проблемы. Конечно, есть и другие, но эти проблемы влияют на развитие и жизнедеятельность всего человечества в целом.. Бурное развитие промышленности во многих интенсивно развивающихся странах приводит к проблеме загрязнения воздуха. Из-за устаревшего очистительного оборудования, выхлопов машин и автотранспорта, сжигания отходов может загрязниться воздух. Конечно, надо принимать меры, помогать природе - бороться за очистку. Но не везде данная проблема выноситься на обсуждения, где-то ее просто игнорируют.