How can you complete these dialogues? 3) a: victor speaks english and french, doesn't he? b: i'm that he does. 4) a: is canada bigger or smaller than the usa? b: i don't know geography very well. ! нужно !

I'm not sure he does, but I don't know.

1) Mr. Smith's house; 
2) the girls' doll;
3) Rembrandt's works; 
4) the baby's toy; 
5) the employees' meeting; 
6) those women's bags; 
7) our boss's orders; 
8) the children's books; 
9) my parents'cottage; 
10)her cousin's garage.

Упр. 2
1. My friend's room. 2. My friend's rooms. 3. My friends' room. 4. My friends' rooms. 5. This engineer's son. 6. Our factory's engineers. 7. Our teacher's daughter. 8. Those student's dictation. 9.Your economists' letters. 10. The seventh lesson's words. 11. These people's children. 12. Mary's friend. 13. Peter's letter. 

Упр. 3
1) Kate and Mary's mother
2) My aunt Mary's children
3) Picasso and Dali's paintings
4) the commander-in-chief's gun 
5) Ivan the Terrible's times (здесь не уверен)
6) The Minister of Foreign Trade's speech
7) The Herald Tribune's correspondent
8) my father's-in-law flat
9) Henry the Eighth's wives
10) Saudi Arabia's oil wells

A.

1. Repeat this rule. It is very important.

Указательная функция; как личное местоимение.

2. Your solution of this task is correct. Explain it, please.

Указательная функция; как слово "это".

3. It was cold in the laboratory yesterday.

"It" в начале безличного предложения.

4. In England it rains more often than it snows.

"It" в начале безличного предложения (в обоих случаях).

5. What is this? It is a new computer.

Как слово "это"; как личное местоимение.

В.

1. It is difficult to say which month is the best.

"It" в начале безличного предложения.

2. It is my brother who works at this plant as an engineer.

Как личное местоимение; указательная функция.

3. It will take them plenty of time to solve the problem.

"It" в начале безличного предложения.

4. What is there on the wall? It is a clock.

Как личное местоимение.

5. It was reported that the delegation had arrived in Kyiv.

"It" в начале безличного предложения.