3речення в паст перфект і питання до !

ответ:

  i  had  already worked  by six o'clock.

i‘d been  typing  this text for 2 hours and then found it on the internet.

i  had been  playing  football for 2 hours and then i took a shower. 

had  you  been doing  your homework for 3 hours before i came?  

had  it  been raining  before he arrived at home?

had  you  booked a table?