1.  And you have a good one.

2.  As a general rule, though, the good ones end up in law school.

3.  Beforehand, the pretence that he was interested in putting together a documentary series on psychic phenomena had seemed a good one.

4.  But it is not a very good one, since it is available only until the moment that Titius brings suit.

5.  Computer programmers are in great demand, and a good one can earn a very high salary.

6.  He is in other words a model student though not necessarily a good one.

7.  He never really saw the effort, the nervous breakdowns, the tears for poor exam results or exultation over good ones.

8.  Maybe it was a crackpot theory, but it was a good one.

9.  Payno was gleeful, for his idea was a good one.