Choose the correct tense form

1)They announced that inflation the record level.
a) had reached; b) reached; c) will have reached; d) is reaching.
2)They the transaction for an hour already.
a) are making; b) have been making; c) will make; d) made.
3) The principle elements of the economic system by Adam Smith.
a) describe; b) are described; c) has been described; d) had been described.
4)He emphasized that some reforms for practical reasons.
a) delayed; b) had been delayed; c) are being delayed; d) has been delayed.
5)The Tax system of Ukraine significant by that time.
a) changes; b) has changed; c) changed; d) had changed.
6)Taxes may on transactions, institutions, property and all kinds of others things.
a) be imposed; b) has been imposed; c) was imposed; d) impose.
7)The money from Middle Eastern country to a London bank at that time.
a) transport; b) is transported; c) was being transported; d) has been transported.
8)There the four basic factors that give the customer the most effective choice.
a) are; b) be; c) was; d) is.
9)A number of factors an economy’s aggregate supply.
a) was affected; b) affects; c) is affected; d) are affecting.
10)Today this organization an instrument in implementing the international debt strategy.
a) has become; b) became; c) had become; d) has been becoming.

1. science is knowledge about the world based on examining, testing, proving facts. 2. technology is  new machines,  equipment, and ways of doing things that are based on modern knowledge about science  and computers. 3. yes, they are. technology is continuation of science. 4. -  i think all technology isn't based on science. 5. - there are some modern technologies that depend heavily on science, for example  nuclear power production and space travel. 6. -  industrial technology began about 200 years ago. 7.  - the steam engine was invented in 1698. 8.  thomas savery invented it. 9.  radio was invented in 1895. 10.    the radio was invented by  guglielmo marconi. 11.  - television was invented in 1927. 12.  the television was invented by  philo taylor farnsworth. 13.  the telephone was invented in 1876. 14.  the telephone was invented by  alexander graham bell. 15.    the first car was invented in 1886. 16.  the first digital computer was invented  in the 1930s 17.  - the first digital computer was invented by  john vincent atanasoff. 18.  - i know many famous scientists among them c. darwin and n. tesla. 19.  one of the most famous inventors for me is t. edison. 20.  i'm interested in engineering.  it's complicated and i like it.

  как мы видели, во всякой экосистеме необходимые для жизни вещества сохраняются сложным циклическим процессам, которые делают возможным многократное использование этих веществ. количество вещества ограничено, однако энергия практически неиссякаема. поэтому в отличие от замкнутого круговорота веществ поток энергии является однонаправленным, т. е. незамкнутым. количество энергии на любой стадии процесса можно оценить, если сжечь соответствующий материал в калориметре и измерить количество образовавшегося при этом тепла. изучение потока энергии позволяет получить дополнительные сведения о функциональной структуре биотических сообществ. кроме того, оно позволяет выяснить потенциальную биологическую продуктивность данного местообитания. располагая такими сведениями, можно вычислить, сколько особей каждого вида могло бы здесь существовать.