Тесты

Укажите предложение со сказуемым в страдательном залоге

Выберите один ответ:
a. Developed European countries are exporting high-quality goods all over the world
b. All decisions about goods production were made by the central offices in the Soviet block countries
c. Changes in consumer demand have influenced goods quantity and quality demanded

1.During the 199's, scientists have developed better varicties of plants and livestock.
2.Animal husbandry, which has been proctised for thousands of years, seeks to improve the quality of livestock.
3.Each year hundreds of new kinds of animals are discovered.
4.Food crops can be divided into eight groups.

Здравствуйте)) помогите, пожалуйста, перевести предложение из статьи на тему "Маркетинг".
Manufacturing companies need to redefine and redesign their production systems in response to the competitiveness demanded by the challenges of present markets.

Начало вроде понятно: Производственные (промышленные) компании должны пересмотреть и перепроектировать свои производственные системы в ответ на...
А вот после response to вроде и слова не сложные, а единого смысла не могу понять))

Надо опр. время и залог.
1) Thousands of new products are being presented at the Consumer
Electronics Show in Las Vegas.
2) More companies are using 3-D printing to directly manufacture some
products.
3) The Committee on Banking Supervision has been working on a set of
recommendations.