Read the text and answer the qquestions p81. Ex3 5класс

In the Far East, the temperature in the south of Chita to Khabarovsk - minus 10-15, Vladivostok - minus 4, in Yuzhno-Sakhalinsk - minus 5. In Yakutia freezing - minus 35 in the capital, in Tiksi - minus 43.Cold came and the north eastern Siberia in Hatanga 33 degrees below zero, in Norilsk - 25. Further south the weather is much milder: Krasnoyarsk - minus 8 in Novosibirsk - minus 10 in Irkutsk - minus 12. West of the air warmed even more: in Tyumen - minus 6 in Yekaterinburg - minus 3.In European Russia warm, damp and cloudy weather gave way to a light frost. In Kursk, Smolensk and Voronezh - minus 2, Saratov - minus 4 in Kazan - minus 7. At the heart of frost to 10 degrees below zero.In St. Petersburg, clear weather, no precipitations at night, near zero. In Moscow - minus 4.2 and snow showers.

ex.1
a) She was waiting for the manager. She had been waiting for him since she came to the office. 
b) It happened some years ago.
c) Before he went there last Monday he had discussed some business matters with his director and got necessary instruction from him.
d) It was introduced into the market at the beginning of the year and since then it has been a great success.
e) Has your company done good business?
– Yes, they discussed it two days ago.
ex.2
1. I’d like him to change the contract terms.
2. I expected them to introduce changes into the computers.
3. I saw Mr.Dunn buying some envelopes at the post office ten minutes ago.
4. When do you want the new machines to be shown in operation?
5. What contract terms do the buyers usually want the selling companies to offer?