Then, on a separate sheet of paper, correct the incorrect sentences.____1. Two emails from Jane came on Monday a third one came on Wednesday.____2. An encyclopedia is a valuable source of information it contains summaries of every area of knowledge.____3. Because of the rapid expansion of human knowledge, it is difficult to keep printed encyclopedias current.____4. A printed encyclopedia may quickly go out of date also it is quite expensive to purchase.____5. Online encyclopedias are available to everyone with access to the Internet.____6. Articles in most encyclopedias are written by experts in each subject, who are often university professors.____7. An editor of an encyclopedia does not write articles he or she only collects and edits articles.____8. To find a book on a certain subject, you used to look in a card catalog, to find a magazine article on a subject, you used to look in a periodical index.____9. If you cannot find any information on a subject, you can always ask a librarian to help you, they are paid to assist students.

G Label each sentence as C (correct), D (un-on), or C (omma splie). Then, on a separate sheet of paper, correct the incorrect sentences.____1. Two emails from Jane came on Monday a third one came on Wednesday.____2. An encyclopedia is a valuable source of information it contains summaries of every area of knowledge.____3. Because of the rapid expansion of human knowledge, it is difficult to keep printed encyclopedias current.____4. A printed encyclopedia may quickly go out of date also it is quite expensive to purchase.____5. Online encyclopedias are available to everyone with access to the Internet.____6. Articles in most encyclopedias are written by experts in each subject, who are often university professors.____7. An editor of an encyclopedia does not write articles he or she only collects and edits articles.____8. To find a book on a certain subject, you used to look in a card catalog, to find a magazine article on a subject, you used to look in a periodical index.____9. If you cannot find any information on a subject, you can always ask a librarian to help you, they are paid to assist students.