听力原文:M: I have an elderly mother and I'm worried about her going on a plane. Is there
W: Not if her heart is all right. If she has a heart condition, I'd recommend against it.
Q: What does the man want to know about his mother?
(15)
A.When she will return home.
B.Whether she can go by herself.
C.Whether she can travel by air.
D.When she will completely recover.