It was in the small house _____ was built with stones by his father _____ he spent his childhood.
____________ great help, I could get rid of all the difficulty and succeeded.
The reason__________ their failure you know is they didn't get fully prepared for the experiment.
--Why has he been staying at home these days? --He ___________ since a month ago.
The president of the country was well of when he was in power.
They suggested not only to the party but also give a performance.