According to the passage, what did Ma Yun use to be?

(单选题)21.（ ） (单选题)What does the author advise us to do to reduce the passive e (单选题)What does the underlined part up “in the air” in Paragraph 4 (单选题)How does watching sad movies benefit us according to the tex (单选题)How did the author behave after jumping out of the airplane? (单选题)What did Bailey do for her father before she skydived? (单选题)What’s the author’s main purpose of mentioning cemeteries in (单选题)What can be inferred about the author from the text? (单选题)What can be known from the text? (单选题)Why is eating in local pubs suggested?