Помогите пожалуйста переведите и выберите правильный ответ и почему его мы выбрали имено...

Question

Помогите пожалуйста переведите и выберите правильный ответ и почему его мы выбрали имено этот вариант

Вот задание Open The brackets and complete the sentences using past simple , past continuous or past perfect. 1. Our teacher explained to us that Americans ( wrote/ had written) their Constitution 200 years before and it ( worked/ was working ) still. 2. I was not sure that in the USA the judges ( worked / had worked) in the Supreme Court as long as they ( lived / were living) . 3. When my brother ( came / was coming ), I just ( finished / had finished ) reading the documents. 4 . William ( sighed / had sighed ) all the papers by 6 o'clock. 5. The conference ( began / had begun). Before James ( arrived/ had arrived ).

Answer 1

Had written Is working Worked Lived Came Had just finished Had signed Hasbegun Arrived

Answer 2

1 had written  ( написали на 200 лет раньше, чем учитель объяснил)   is working (работает и сейчас)

2 worked   were living (работали одновременно с тем как жили) Но мне кажется, можно и lived

3 came      had finished (закончил читать раньше чем брат пришёл)

4had signed (подписал до наступления 6 часов)

5 had begun (раньше чем Джеймс прибыл)   arrived