Поставьте вопросы к выделенным словам:
1) It usually takes me HALF an hour to get up, wash and dress. (1)
2) It took us FIFTEEN MINUTES to discuss the question yesterday. (1) 
3) It has taken me TWO DAYS to read these notes. (1)
4) It took them AN HOUR  to get there by car (1)

1) how long does it usually take you to get up, wash and dress?2) how long did it take you to discuss the question yesterday?3) how long has it taken you to read?