19. Sentence 4: Forgetting to send a Birthday card or anniversary present may hurt the feelings of a friend or relative. What correction should be made to this sentence? (1) change to send to sending (2) change Birthday to birthday (3) insert a comma after card (4) change anniversary to Anniversary (5) replace present with presence 20. Sentence 8: When new information interferes with that already stored in our memory, they can push aside or get mixed up with the old information. Which of the following is the best way to write the underlined portion of this sentence? If you think the original is the best way, choose option (1). (1) our memory, they can (2) your memory, they can (3) our memory, it can (4) your memory it can (5) our memory they can 21. Sentence 11: Paying close attention involves concentrating on the things that is important to remember. What correction should be made to this sentence? (1) change Paying to To pay change involves to involving replace the with them (2) (3) change is to are no correction is necessary (4) (5)