SAT / ACT Grammar Masterkey

Among different types of adjective clauses, those that involve " preposition + which " or " preposition + whom " construction are definitely the hardest.  Examples: in which, under which, by which, over which, with whom, of whom Again, I’m going to simplify the concept as much as I can. When approaching these questions, we need to try to see the ORIGINAL sentence and what the adjective clause is modifying.

An adjective clause is a type of a modifier,  which creates some of  the most difficult grammar questions  in the SAT and the ACT. The role of an adjective clause is simple: like any other adjective,  an adjective clause modifies a noun.  The only difference between a basic adjective and adjective clause is that the latter involves a subject and a verb.