He tried his best to solve the problem, ________ difficult it was.
The ________ of school leavers that go to university is about fifty percent.
The generation________makes it difficult for parents to understand their children’s opinions.
The Students’ Union was founded for the________of them.
Don’t try to persuade your boss;he won’t have the________of employing me—a flesh student.
Your work experience is a big________in the job market but your poor eyesight will limit your choices.