When I was at college I ___ threee foreign languages, but I ___ all except a few words of each.
Not until he went abroad for further study ________ how attached he was to his parents.
It was during the Ming Dynasty ________ the Great Wall was repaired and extended to take on the appearance it has today.
—Are you pleased with what he has done? —Not a bit. It couldn't be________.
The murderer, together with his two brothers, ________ sentenced to death just now.
We each ________ strong points, but each of us on the other hand ________ weak points.