Rewrite the following sentences, changing verb forms from the indicative to the subjunctive mood. 1. A basic requirement for any business professional is that he / she is able to write clear business letters. 2. Was the typical business letter clear, many costly communication problems could be avoided. 3. All too often, the business letter reads as if it was a lengthy personal letter. 4. It is necessary that the business letter indicates its subject in the introductory paragraph. 5. Many offices prefer that business letters are no longer than one page.