----Hello! What are you doing now? ----We ____________ the school trip.
---I have finished my homework already, Mum. --- When ________ you ________ it?
Lucy is ________ girl of the twin sisters.
---How did you work out the difficult chemistry problem? --- I worked it out by ________.
By the time we rushed to the hall, the party ________ for ten minutes.
Jenny ________ some clothes to charity because the children in some poor areas need them.