Test your grammar. (Who, whom) do you think should take this grammar refresher workshop? A writer, as well as other professionals, (is/are) expected to use correct grammar. Do you object to (me, my) correcting your mistakes? Submitted manuscripts (that, which) have errors may be rejected. This session will help you refresh your grammar knowledge and polish your writing skills, so you will make (less, fewer) mistakes.
(Answers: who, is, my, that, fewer)