Write what you had done yesterda: a) by the time your rarent(s) came back home b) by the time supper was ready c) by

 a) I had done all my exercises by the time my parents came back home.

 b) We had already discussed all the questions by the time supper was ready.

 c) The results of our tests had been announced by 6 p.m..

 d) They had cleaned all the rooms by the time you came back from school.

 e) He had finished his test by bed time.