单项选择题
M: Are there any more questions on this lecture Yes, Mary. W: Dr. Baker, do you think it’ s possible for a poor man be elected to be a president
A. Nurse. B. Student. C. Journalist. D. Teacher
A. Toothache. B. Stomachache. C. Headache. D. Backache.
A. had already left B. were already leaving C. were already left D. had already been leaving