After 1953 _______ people have succeeded in climbing the mountain.
He turns a deaf ear to his parents, _____ many times they have pointed out his weakness.
. Mage is rather difficult to make friends with, but her friendship, _____ is truer than any other.
Only through experiences of trial and suffering _____, and success achieved.
Unless _____, the Minister wouldn't attend the welcome party.
We all feel puzzled why the students _____ the same mistakes repeatedly in exams.