ACT Prep

Take a look at these sites for sample questions.

Most have full tests, usually organized by subject matter:

http://www.actstudent.org/sampletest/index.html

http://www.4tests.com/exams/examdetail.asp?eid=13

http://www.actexampracticetests.com/

http://www.testprepreview.com/act_practice.htm

For basic grammar review, try one of the following:

http://www.sparknotes.com/testprep/books/act/chapter5.rhtml

http://www.chompchomp.com/

http://grammar.ccc.commnet.edu/grammar/

http://owl.english.purdue.edu/owl/resource/566/01/