Watch the following video carefully until 6:30 (in the rest of the video he gives and explains an example):  

For my students:

I want you to INDENT the first line of a new paragraph, I do NOT want you to “skip a line”, i.e. leave a blank line.

What the speaker calls “thesis (These) statement” is our “topic sentence”.

Ending a paragraph with a “bridge” is a feature of advanced writing. You need NOT do it, when you answer questions on a text. When writing a composition you should only try it, when you are really good, otherwise your “bridge” will probably be rather clumsy (holprig).