1.   He complained that newcomers forgot to bring church membership certificates along, a sure sign that they expected no church at all.

2.   He scratched his head, a sure sign of thought.

3.   He was walking up and down, a sure sign that he was worried.

4.   It was still in place, a sure sign that the door had not been opened while he was out.

5.   It was thus a sure sign that his thoughts were far away.

6.   Last week saw talk of intervention to underpin the euro, a sure sign that policymakers are starting to be concerned.

7.   My mother pursed her lips, a sure sign of displeasure.

8.   The oyster boats were still fixed to the moorings, a sure sign that Oystermouth was in mourning.

9.   The Presidential lips pursed, a sure sign of anger.