在下面对话的空白处,填入适当的单词、短语或句子,使对话完整、意思通顺.
A:Are you going to buy a coat this weekend?
B:No,I have changed (81) _________________.I will buy a bag rather than a coat.
A:Why?You said (82) ____________________________.
B:Yes.But I saw a really nice bag in an online store.
A:You can buy both a coat and a bag.
B:(83) _________________.I don’t have enough money.
A:You have really changed!You would buy anything you wanted in the past.
B:My mother is ill.I need to (84) ___________________ to buy medicine for her.
A:I’m (85) _________________ to hear that.Is her illness serious?
B:No,not very serious.But it will take her some time to get better.