Choose the best answer A, B, C, D to complete the sentence.

 I know Louis is _________ friend. He’s also a friend of_________.

Listen and fill in the blank with one suitable word.

Never before in history, have there been so many people on Earth as right now. Our numbers have skyrocketed from 1 billion in 1800 to 2.3 billion in 1940, 3.7 billion in 1970 and 7.4 billion in (1) _______. The world population (2) _______ fourfold in the last century, so what can we expect for the next century? And what does population growth mean for our future? Will there be mass-migration? (3) _______ slums and megacities covering continents? Diseases and pollution? Chaos and violence over energy, water, and food? And a human species focused only (4) _______ sustaining itself? Will population growth destroy our way of life? (5) _______ is this prophecy just ungrounded panic?

Find the word which has a different sound in the part underlined.

Find the word which has a different sound in the part underlined.

Find the word which has a different sound in the part underlined.

Choose the word which has a different stress pattern from the others.

Choose the word which has a different stress pattern from the others.

Choose the word which has a different stress pattern from the others.