4 Read the pairs of sentences and explain the difference in meaning.
1 a He's written a book.
b He's been writing a book.
2 a Who's eaten my chocolates?
b Who's been eating my chocolates?
3 a She's never been to a wedding before.
b She'd never been to a wedding before.
4 a I've tried to call her.
b I've been trying to call.
5 a They'd been married for thirty-five years!
b They've been married for thirty-five years!​

The little boy was standing near the door and trying to press the doorbell button. But he was too short for it. A tall man was passing the door. The boy asked him to press the call button. The man did so. Suddenly the boy quickly run downstairs. He was running and shouting: "It was a joke! Flee! If the owner of the flat comes out of the apartment he will kick your ears!"

Маленький мальчик стоял около двери и пытался нажать на кнопку дверного звонка. Но он был слишком мал для этого. Мимо проходил высокий мужчина. Мальчик попросил его нажать на кнопку звонка. Мужчина сделал это. Вдруг мальчик быстро побежал вниз. Он бежал и кричал: "Это розыгрыш! Убегайте! Сейчас выйдет хозяин квартиры и надерет вам уши!"

The little boy was standing near the door and trying to press the doorbell button. But he was too short for it. A tall man was passing the door. The boy asked him to press the call button. The man did so. Suddenly the boy quickly run downstairs. He was running and shouting: "It was a joke! Flee! If the owner of the flat comes out of the apartment he will kick your ears!"

Маленький мальчик стоял около двери и пытался нажать на кнопку дверного звонка. Но он был слишком мал для этого. Мимо проходил высокий мужчина. Мальчик попросил его нажать на кнопку звонка. Мужчина сделал это. Вдруг мальчик быстро побежал вниз. Он бежал и кричал: "Это розыгрыш! Убегайте! Сейчас выйдет хозяин квартиры и надерет вам уши!"