Подставьте модальные глаголы had to, can, need, be to, must.
1.To be a candidate a person … n’t live in the area. 2. Every householder … enter on the register of electors. 3. During the cold war Europe … choose between another war and peaceful coexistence. 4. Each member of the General Assembly … vote only once. 5. We have the list of all residents who … vote.

A)
1. You'll be late for the train unless you take a taxi.
2. I'm not leaving until you're back (until you come back).
или
2. I won't go till you come back (till you get back).
3. I would like to know when your sister will come back to Leningrad.
4. I would like to know the exact day when your sister comes back to Leningrad.
5. I couldn't say for sure if he would be at a meeting, but if he comes he will certainly speak in a debate.
6. I'm going to come down (если по лестнице - come downstairs) to find you some food while ladies are in their rooms.
B)
1. I will call you, when I find and bring her here.
2. I won't leave till I get her address.
3. I will marry her, when I turn 23.
4. If you don't kill me, I won't miss.
5. I don't know if I can explain to you how it goes.

1. Yes, it is. 
2. A fine morning can change into a wet afternoon and evening. And a nasty morning can change to a fine afternoon. 
3. They say that "Other countries have a climate; in England we have weather", also they say the weather is very changable
4. I don't find this topic interesting becouse we can't cpeak about the weather for a long time. We may speak about the weather when we have nothing to talk about.
5. It's inwinter in January and February.
6. When it's winter and the weather is cold, damp and unpleasant. 
7. the English go abroad for the summer — to France, Spain or some other place on the Continent. 
8. It spreads everywhere, it is in the streets and it creeps into the houses. 
9.I like the weather in spring, when after the cold winter, the warmth comes and wakes everything up. Everybody is happy.
10. I like better when it's cold, you can dress warmer, or stay at home and drink hot chocolate.
11. Today it's cloudy, sometimes it rains
12. It will be colder with some precipitations.
 12. In winter it very cold, it usually snown. In February it's usually stormy, and in January it's frosty. In summer it's very hot, the temperature may rise up to 40 degrees. In autumn it's very rainy and cold. In spring it's getting warmer and warmer every day.