问题
选择题
You look smart in this new jacket. That old one ______ thrown away many years ago.
A．ought to be
B．ought to have been
C．would be
D．would have been
答案
答案：B
考查情态动词后接动词的情况，本句意为“你穿上这件新夹克很帅气，那件旧的在几年前就该扔了”。情态动词ought to后接完成形式表示“本该/应该……(但是却没有……)”，故选B。