1.   But the most effective way of exploring this difficult question is not in abstract, supra-historical terms.

2.   I prefaced it by saying that these were difficult questions which he was at liberty not to answer.

3.   I simply pose these difficult questions.

4.   Practice interviewing with a friend who will ask you difficult questions.

5.   Redundancies arising from a reduction in work present more difficult questions.

6.   The boundaries of sovereignty must be determined in the light of the prevailing moral and political climate when difficult questions of constitutional authority arise.

7.   The more difficult question is how long he can continue as a one-man movement.