The person who invented the paper clip must be quite rich. ...

[Engineer]

The person who invented the paper clip must be quite rich. ________
 
  Underline the subordinate clauses and identify the type of clause (adjective or
  adverb) in the space provided.

Question 2

Barbara is the most cautious of the two sisters, although she doesn't drive very
  careful.
 
  In the following sentences, correct any errors in the use of adjectives and adverbs (or
  in the use of then or than) by crossing out any incorrect words and writing the
  correct words above them.

[miss.ashley]

Answer to Question 1

who invented the paper clip

Answer to Question 2

Barbara is the more cautious of the two sisters, although she doesn't drive very
carefully.

[Engineer]

Thanks for the timely response, appreciate it

[ricroger]

Excellent