Asosiy qism self-study task Fill in the blanks with an appropriate answer

Task 3. Writing : Write the summary to the given text
Wall Street
Wall Street itself is a short street in Lower Manhattan, New York City, which takes its name from the town wall built in 1653 across Manhattan Island to protect the Dutch colonists of New Amsterdam from both the Native American Indians and the English. Symbolically, however, "Wall Street" means the financial center of United States (just as the "City" of London is the financial center of the United Kingdom) because of the concentration of business institutions in the area: stock-brokerage companies, banks, trusts, insurance corporations, commodity exchanges (coffee, cotton, metal, corn) and, of course, the New York Stock Exchange.
The Exchange —- sometimes called "the nation's market place" — was founded on May 17, 1792, when Alexander Hamilton, first US Secretary of the Treasury, decided to issue government bonds to consolidate and refund the debts incurred during the War American Independence; a "market place" for the selling and buying of these bonds became necessary.
The Exchange deals only in "listed" stocks, i.e. stocks which on the official trading list of the Exchange. In order to be listed, company must have at least 2,000 stockholders, with at least 1 million shares distributed among them, and an annual turnover of at least $2.5 million. In 1998, there were more than 2,500 listed stocks.

Task 4. Letter writing
You rent a house through an agency. The heating system has stopped working. You phoned the agency a week ago but the heating system has still not been repaired.
Write a letter to the agency. In your letter
- introduce yourself;
- explain the situation;
- say what action you would like the agency to take.
You should write at least 150 words.
Write your letter in an appropriate style in 150 words on your answer sheet.
You do not need to write your address.
Begin your letter as follows:
Dear Sir or Madam, ....