单项选择题


Questions 11 to 13 are based on the following passage. At the end of the passage, you will be given 15 seconds to answer the questions.
Now listen to the passage.
Why did Rosy study until very late at night

A.She wanted to pass the exams.
B.She had not worked very much.
C.She wanted her sister to worry about her.
D.All the students were working hard.