You shouldn’t have failed the job interview. Why didn’t you do ___ the expert suggested?
181. In the hospital, there are a lot of _____.
180. There is a _____ of understanding between them. Otherwise, they will be good friends.
179. In China, the majority of men earn their living by manual ______.
178. There are four basic _____ of blood in the human body. What do you belong to, A, B, AB or O?
177. You should turn to Mrs. Green. She is the key figure in the company. The underlined part probably means _____.