1. Translate paying attention to Subject Clauses.
1. What has been achieved thus far is insight into economic mechanisms. 2. How pleasant work can be is shown by a simple fact. 3. What a
decision problem is must be clearly defined. 4. Whether the methods have
been used since then is not known. 5. Whether this could be achieved with
a triplex mechanization was to be determined. 6. Which method is preferred depends entirely on circumstances. 7. Whether or not a social system
evolves and survives is dependent on the efficiency with which it processes
information

1. i usually   make cakes on sundays. я обычно делаю торты по воскресеньям.     i usually   don't  make cakes on sundays.     do you  usually   make cakes on sundays? 2. your friend drinks coffee in the morning. ваш друг пьет кофе по утрам.        your friend doesn't  drink coffee in the morning.     does your friend drink coffee in the morning? 3. students always read many interesting books. студенты всегда читают много интересных книг.         students don't read many interesting books.     do students always read many interesting books? 4. she often sings her favorite songs loudly. она часто поет свои любимые песни громко.         she doesn't sing  her favorite songs loudly.     does she often sing her favorite songs loudly? 5. john seldom prepares dinner. джон редко готовит ужин.       john doesn't prepare dinner.     does  john seldom prepare dinner? 6. children run in the park every day. дети бегают в парке каждый день.       children don't  run in the park every day.     do children run in the park every day?