11.   If that kind of volatility seems frighteningly high, it is.

12.   If this kind of performance seems like a long time in coming, it is.

13.   One kind of protofibril seems to interfere with the process of memory consolidation, he said, and may explain why people experience mild cognitive impairment in middle age.

14.   Real life is different, of course, and at times certain kinds of singers seem very nearly extinct.

15.   So there are Elvis sightings and there are Elvis sightings, but neither kind seems to have occurred in Boston.

16.   Some kinds of REITs seem more attractive than others.

17.   Such a warm tale may be uncommon in the music business, but this kind of response seems to occur frequently around Staats.

18.   That kind of pragmatism seems pervasive in students of aviation.

19.   That kind of campaign seems as outmoded as the whistle-stop.

20.   That kind of curiosity seems sure to yield a new generation of quilters.