听力原文: When John Weston awoke that morning, he remembered that his mother was going int
During the weeks since then the pains had come even more frequently, and the narrowed eyes became an almost permanent part of her expression. Always rather sharp, she began losing her temper over little things so that John's father kept his thoughts to himself more and more. John, as ready as possible to make allowances, tried to think what it would be like to have toothache all the time and how bad-tempered that would make him.
(33)
A.As soon as she realized that something was wrong.
B.Only when her husband advised her to.
C.A long time after the trouble began.
D.When John asked what was wrong with her.