11.   We also learned to bring a new toy he had never seen before to keep his attention on the plane.

12.   This will be a show the like of which has never been seen before.

13.   My mind was racing, trying to think where I had seen him before.

14.   She had an uncanny resemblance to someone I had seen before.

15.   Reaching Out WHO believes that, as AIDS becomes more common, the disease promises to unite the world to a degree never seen before.

16.   He was crying harder than Mildred had ever seen before.

17.   Opposite them were two or three other characters Robert could not remember seeing before at the school.

18.   Above one elbow he wore a thick gold band of Norse design that Tuathal had never seen before.

19.   We were shown round the mills at Newcastle-under-Lyme and Preston, both of which I had seen before.

20.   The lights on top of the Thing moved oddly, into patterns Masklin had never seen before.