С! нужно задать вопросы к выделенным словам. 1) i went to bed late last night. 2) his brother finishes his work at 6 o'clock. 3) he will be waiting for us at 4 p.m. tomorrow.

1.When did I go to bed.
2.Whose work does finish his brother at 6 o'clock?
3.When will he be waiting for us at 4 p. m.?

Как-то так.