1. Ethel Corporation must not only improve its internal control system it must also review its procedures for accounts receivable.

2. Accountants do not depreciate land, therefore, we cannot allocate land costs on a systematic and rational basis.

3. Changes in the general purchasing power of the dollar forces accountants to deal with an unstable monetary unit.

4. One problem we found in our reviews of the records were that revenues were not always recorded in the proper period.

sentences that are INCORRECT. Each sentence illustrates an error