1.   If you find a particular topic hard to understand, then this is always a good way to solve the problem.

2.   It is as if within the wider panorama particular topics become a focus of especial attention.

3.   It is therefore a simple matter to find a particular topic, and also to browse profitably through the book.

4.   Others are conducting their discussions on World Wide Web sites devoted to particular topics.

5.   Seminars provide an opportunity for students to come together and discuss a particular topic.

6.   There are different kinds of meetings, some emphasizing discussion of a particular topic, some with speakers.

7.   These are based upon invited research papers on a particular topic.

8.   The teacher should always notify the record office in advance and check that there is suitable material for a particular topic.

9.   They may go on to use further sources to discover more about a particular topic.