围绕本课标题 It could be worse 不幸中之万幸（丢钱又失而复得）主题，AI 老师会出 若干个简单问题，
每个问题听完后，用 完整句子口头作答。
⚠️ 尽量说完整句子，不要只说一个词；优先用本课句型与词语：I had just lost £50 / felt very upset / could do nothing / complain about this wicked world / It contained £50 / there is still some honesty in this world