13. His ability is beyond question; _____ has been in doubt is ____ he is prepared to work hard
This is the school ____ we visited three days ago.
This is the factory ____ we worked a year ago.
Nearby were two canoes ____ they had come to the island.
Jack is pleased with ____ you have given him and all ____ you have told him.
Do you work near the building ____ colour is yellow?