A：花药和花丝
B：花丝和花柄
C：花药和花托
D：花瓣和萼片
我们都知道“刻舟求剑”的故事，这是因为剑主选错了参照物。要确定落水之剑的位置，应选择的参照物是（ ）
Mr. Jones said he was _________ the possibility of buying a new house because his older one _________ the tornado.
