3.3 Complete the sentences with for or since. 1. I've had a horrible cold Friday three years. 2. We've lived in this house they were kids. 3. Damira's known Marat 8 o'clock? 4. Have you been here 5. I've been on a diet five long months.
2. 1. We had to take the 8.30 train to arrive in time. Мы должны были сесть на поезд в 8.30, чтобы прибыть вовремя. 2. The children might go to the Zoo. Дети могли пойти в зоопарк. 3. We could go to the park together. Мы могли пойти в парк вместе. 3. 1. There are no deep rivers in Great Britain. В Великобритании нет глубоких рек. 2. Can you speak any foreign language? Ты можешь говорить на каком-нибудь иностранном языке? 3. I have some interesting information about England. У меня есть интересная информация об Англии. 4. 1. Speaking loudly they approached the Trafalgar Square. Громко разговаривая, они достигли Трафальгарской площади. 2. Westminster Abbey built by Sir Christopher Wren is one of the best examples of early English architecture. Вестминстерское аббатство, построенное сэром Кристофором Реном, - один из примеров ранней английской архитектуры. 3. London destroyed by the Great Fire was reconstructed by its citizens. Лондон, разрушенный Великим пожаром, был восстановлен его гражданами.
We have two moments of history here: "now" and "then" (at particular moment in the past). Let's mark as the following: T - Tom's age now E - Elizabeth's age now To - Tom's age then Eo - Elizabeth's age then
So we have: T - E = To - Eo (their difference is constant) (1) T + E = 49 (2) T = 2Eo (3) To = E (4)
Using (4) into (1): T - E = E - Eo Then using (3) here: 2Eo - E = E - Eo 2Eo + Eo = E + E 3Eo = 2E E = 3/2 Eo (5)
Using (5) and (3) into (2): T + E = 49 2Eo + 3/2Eo = 49 3 1/2Eo = 49 7/2Eo = 49 Eo = 49 : 7/2 Eo = 14
So, Elizabeth was 14. It means now Tom is 2*14=28. Elizabeth now is 49 - 28 = 21
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