Поделитесь своими знаниями, ответьте на вопрос:
H. Underline the correct word. 41. Mary was reading while / when her sister was watching TV.42. He has been working here since / for five years.43. I have yet / just watered the plants.44. He had finished his homework by / since eight o'clock.45. I have ever / never seen such a beautiful sunset before!