Dear Vicky,  I (0)__am__ in my new flat, at last! It’s on the seventh (1) of a 
big block of flats near the city (2) . The flat is wonderful. It’s 
got two bedrooms, a kitchen, a bathroom and a huge (3) with 
a fireplace in it. My favourite room is my bedroom, because it’s very 
pretty. It’s got a new carpet on the (4) and a large curtain 
with a great (5) of the city. My comfortable bed is right next 
(6) the desk. There is also a small table in the room with a 
telephone and a lamp (7) it. I’ve got a big (8) with a 
lot of books in it, a large wardrobe, a TV and a CD player in my 
bedroom. I’ve also got some (9) on the walls. My bedroom has 
(10) a balcony, too. There are flowers on it. 
Well, that’s all for now. Come and see me soon! 
Love, 

Paula ​

If the weather is nice, we go for a walk. Если погода хорошая, мы ходим на прогулку. If the weather was nice, we went for a walk. Если погода была хорошая, мы ходили на прогулку. If the weather is nice, we'll go for a walk. Если погода будет хорошая, мы пойдём на прогулку. If he were free, he would do it. Если бы он был свободен, он бы это сделал. If we paid more attention to grammar, we should know the language better. Если бы мы уделяли грамматике больше внимания, мы бы знали язык лучше. I should not have been late yesterday, if my watch had been right. Я бы не опоздал вчера, если бы мои часы шли правильно.

1.He got up at seven o'clock yesterday.
2.Father came home at six o'clock yesterday.
3.I was reading a book at six o'clock.
4.She fell asleep at eleven o'clock yesterday.
5.Mother was drinking tea at eleven o'clock yesterday.
6.Father was watching TV at ten o'clock yesterday.
7.I went to bed at nine o'clock yesterday.
8.I finished my homework at nine o'clock yesterday.
9.I was playing the piano at five o'clock yesterday.
10.He began to do his homework at four o'clock yesterday.
11.She was washing the floor at four o'clock yesterday.
12.I met (если просто встретил)( was meeting=если встречался, то есть была именно встреча/. как событие)) Nick at three o'clock yesterday.
13.When I came home, Kate was playing the piano.
14.When I met John, he was going to the railway station.
15.When I was going to the museum, I saw a big crowd of people in the street.
16.They played in the yard in the evening yesterday.
17.They were playing in the yard the whole evening yesterday.
18.I was cleaning my teeth at eight o'clock in the morning yesterday.
19.We went to the wood in summer.
20.When the teacher opened the door of the classroom, the pupils were sitting at their desks.