Put in: who or which.
 
1.    Have you talked to the lady ... lives on the ground floor? (Подробнее...)

Match the questions and the answers. Fill in the table below.
 
1.  In what countries is English spoken as a first language? (Подробнее...)

Work in pairs. Discuss with your partner the following:
 
What languages are easily understood in any part of the world? (Подробнее...)

Remember what you know about personal characteristics of people who live in different countries.
Example: I believe, the Russians (Подробнее...)

Imagine that you came from one of the countries mentioned in ex. 4 on page 35. Introduce yourself. Say which languages people speak in (Подробнее...)

These are the five most commonly spoken languages in the world:
 
Which language do most people speak in the world? (Подробнее...)

Say in which countries you know that people speak English. Listen and check if you were right.
 

What are the following places famous for:
 
Egypt, Australia, Antarctica, Greece, Italy, China, the USA, Russia. (Подробнее...)

Interview your classmates. Where are the following cities? Tick the right box.
  (Подробнее...)

a) Think of five questions you would like to ask people when you first meet them.
b) Ask your partner your questions and answer (Подробнее...)

Look at the badges of the participants. Read them. Fill in a badge for yourself.
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Имеются два сосуда, содержащие 10 кг и 12 кг раствора кислоты различной концентрации. Если эти растворы смешать, то получится раствор, (Подробнее...)

Решите систему неравенств (Подробнее...)

Найдите наименьшее значение функции (Подробнее...)

Решите систему уравнений
  (Подробнее...)

Не вычисляя произведение, проверьте равенство
0,8368 • 0,863 = 0,7221585.

Найдите значение выражения
9а2 + 30ab+ 25b2+ За + 5b, если а = —3/5b.

Решите неравенство (5х — 4)2≥(4х — 5)2.