They’ll stay in the lab _______ they have finished their work.: ответ на тест 867047 - Английский язык

They’ll stay in the lab _______ they have finished their work.

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He will have finished his work _______ Monday.

The question was _______ difficult _______ nobody could answer it.

I asked him _______ the house had been built.

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In the past fifty years American society has changed much. 1_______. The number of divorces increased. 2_______. They are not forced by economic, social or religious pressure to stay married.
3________. They often find that they have two jobs now: taking care of the house and children and working in the office.
4 ________. They know that this time is a period of change and face many difficulties, but perhaps the pioneer spirit which built the country will help Americans change, improve and adapt to the future.

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The USA is a presidential republic. The legislative power of the USA is vested in the Congress of the USA. 1_______. It consists of two chambers – the Senate and the House of Representatives. The Senate is made up of 100 members (2 from each state) elected for a term of 4 years. 2_______. To be elected a Senator, a person must be at least 30 years old, and have been a citizen of the USA for at least 9 years. 3_______. The number of representatives from each state depends on its population, but each state is represented. To be elected a representative, a person must be at least 25 years old, and have been a citizen of the USA for at least 7 years. 4_______. The presiding officer of the House of Representatives is the Speaker.