Complete the text with one word in each gap.
They often ring me(1)_____ at 6 o'clock in the morning to ask about something unimportant.
Half asleep, I(2)_____ on the up the phone.
When I light and(3)____ hear the voice of one of my friends I just hang and go back to sleep.
If it is(4)____ something really important, they will call me later!