Read the following texts. You will find a word or phrase missing in some of the sentences. Below each of the sentences, four answer choices are given. Select the most appropriate answer to complete the text

Directions: Read the following texts. You will find a word or phrase missing in some of the sentences. Below each of the sentences, four answer choices are given. Select the most appropriate answer to complete the text. Then mark the letter (a), (b), (c), or (d) on your answer sheet. Questions 19 to 23 refer to the following email: The doctor is a person who (19) after the sick people and prescribes medicines so that the patient (20) fast. In order to become a doctor, a person has to study medicine. Doctors lead a hard life. Their life is very busy. They get up early in the morning and go to the hospital. They work without (21) polite so that patients feel (22) a break. They always remain with them. Since doctors work so hard we must realise their (23) 19. (a) remind (b) reminder (c) reminding (d) reminded 20. (a) at (b) about (c) for (d) on 21. (a) notify (b) talk (c) repeat (d) speak 22. (a) now (b) since (c) yet (d) though 23. (a) hold (b) holding (c) held (d) to hold