Switchback is a valid word in this word list. ... The word "switchback" uses 10 letters: A B C C H I K S T W. No direct anagrams for switchback found in this word list. Words formed by adding one letter before or after switchback (in bold), or to abcchikstw in any order: s - switchb
C) We listen, whenever we are driving, to books on tape.
When talking about recycling, people don't seem to consider the recycling of clothing.
The comma should be placed between the first use of recycling and people. The subordinate clause is "when talking about recycling". This is a clause because of the word "when". When makes the reader wonder when what? The main clause is "people don't seem to consider the recycling of clothing."
