Paragraphs are like small conversations, units of building ideas, which are to be put away in memory and not modified further. Reference into a preceding paragraph usually requires a full description with a noun, for beginning a new paragraph is like a professor erasing the blackboard. After erasing it the

Exercises on combining sentences 269

to Paris next week. (b) Did John volunteer or did Bill volunteer? (c) Mother will be powdering her face and Father will be

to Disneyland next week too.