A lot of things have been said about ecological problems such as global warming, deforestation and pollution. However, one of the (SERIOUS) problems today is the appearance of more deserts and droughts. In December 1994 the4 United Nation Assembly (HAVE) a meeting. The result of the meeting was the document called the "Convention to Combat Desertification in (THAT) Countries Experiencing Serious Drought and/or Desertification, Particularly in Africa". (desertification - опустынивание). The UN Assembly also declared June, the (SEVENTEEN) the World Day to Combat Desertification and Drought. The assembly agreed that desertification and drought (BE) global problems because they affected all regions of the world. The assembly also realized that combined action (NEED) to fight desertification and drought.

Объяснение:

№1.

1) swept

2) wrote

3) repaired   came

4) did

5) was

№2.

1) I live in the Russian Federation, but I’ve been to North and South America, some parts of Asia, most of Europe and Africa.

2) Greece gets very hot in the summer.

3) We went to the Republic of Ireland and stayed in Dublin.

4) I started on the Black sea, then went round Bulgaria, Greece, Italy, France, Spain, Portugal and many other countries.

5) The unusual town is situated near Lake Onega.

6) They visited a village in the Alps.

7) Have you seen Mount Fuji?

№3.

1) would not have been

2) were    would apologise

3) would do

4) had

5) had

№4

money, friends, news, tv, work.

№5.

(Я не на 100% уверен по поводу этого)

1) Linda said: “Pole, would you like a cup of coffee now?”

2) Liza said to me: “You must leave this terrible house today.”

3) The teacher said "Which letter goes after “A”?"

4) He asked: “What subject do you like?”

5) He said: “I’m sorry. It’s late”

1.  

1. Dreams up  

2. rejected  

3. long  

4. achieve  

5. attend

2.  

1. He will go to University, if he passes his exams.  

2. If I were you, I would revise Grammar every day.  

3. If Jane misses a bus, she will take a taxi.  

4. If he had read the book, he wrote a composition.  

5. I would cook dinner, if I had come earlier.  

6. If I pass my exams. I will go to university.  

7. If you hadn’t helped me, I don’t know what I would do.  

8. If I wouldn’t be ready for the exams, would I be panicking like this?  

9. I wish I would go to college, but my parents couldn’t afford to pay for me.  

10. Bill wishes he gets better exams results. But he didn’t study hard enough.

3.  

1. If you carry on staying out late, you will be exhausted.  

2. My brother carried off first prize in the sports competition.  

3. He carries out any task he is asked to do.  

4. Your friendship carried me through a difficult time in my life.  

4.

1. Sam is doing research into cultural differences.

2. I graduated from University 5 years ago.

3. Students must never cheat in an exam.

4. My sister is succeeded in becoming a professional dancer.

5. Sue wants to finish school and start earning money.

Объяснение: