1.   Hardly any lunar rocks are younger than three billion years.

2.   I built model cars when I was younger.

3.   I felt that she had got much more charm and she was younger as well, which made it all the more galling.

4.   I should have started saving for my retirement when I was younger.

5.   I used to work on a farm when I was younger.

6.   Jenny was younger than her sister but seemed much more sure of herself.

7.   Kate could smell Pears soap and the smell brought back memories of when she had been younger.

8.   More girls play sports now than when I was younger.

9.   More of the girls, who tended on average to be slightly younger than the boys, were still at school.

10.   One of the notable features is that executive search consultants are a good deal younger than previously.