在英语电影对白中含有单词able的句子

Bree's House
Bree and Rex come out the front door.
Rex:"Of course,I don’t want a new cardiologist,but Lee’s been
conducting tests for weeks.He should have been **able** to figure out
what's wrong with me by now."
Bree:"Honey,we socialize with them.What am I gonna say to Helen?"
Rex:"All I know is I’re never felt worse.And I’re gotta do
something."
疯狂主妇里的一个场景