11.   He did it on philosophical grounds, and never accepted the medal or the money.

12.   He knew very little about tests done on blood from bones, only that they could be carried out.

13.   He would fit more naturally into an old silent movie than he would have done on Tiswas.

14.   How are you doing on those?

15.   If Mr Putin wants to coddle war criminals, let him do it on his own nickel.

16.   If that was done on a national scale we would wipe out this disease.

17.   If you are doing business on the Internet, it is probably not a good idea to turn away potential customers.

18.   If you are doing covert sensitization on an outpatient basis, your client could be consuming alcohol prior to treatment.

19.   It is not frightening, I guess, but not the most pleasant thing you could do on your day off.

20.   It is sensible to give the carp a balanced diet for we want the carp to do well on our baits.