The policeman heard a scream in the dark.
The policeman didn't hear a scream in the dark.
Did the policeman hear a scream in the dark?
Mara saw a strange creature at the window.
Mara didn't see a strange creature at the window.
Did Mara see a strange creature at the window?
Tom said something to his friend.
Tom didn't say anything to his friend.
Did Tom say anything to his friend?
Ann had a scary feeling when the saw the empty house.
Ann hadn't a scary feeling when she saw the empty house.
Had Ann a scary feeling when she saw the empty house?
The children came back late at night.
The children didn't come back late at night.
Did the children come back late at night?
My mother is washing the dishes and my little sister is sleeping now.
думаю так
Используй because(потому, потому что) когда ты хочешь сказать почему тебе нравится или не нравится делать то или иное действие в свободное время.
Например: я люблю наблюдать за птицами, потому что это интересно.
Используй ...that is why(вот почему)...когда ты хочешь сказать что ты делаешь по определенной причине.
Например: я домосед, вот почему я предпочитаю смотреть тв, телевизор после уроков.
Понятно?
В первом лишнее Big,во втором expensive,в третьем good,в четвертом dangerous,в пятом funny,в шестом small