初三英语问题should等You can't imagine that a well-behaved gentleman

打错了
是should
因为：imagine所以用虚拟语气,又因为是第三人称单数（一个举止优雅的绅士）所以用should
如果是would的话应该是第一人称.
imagine
i.mag.ine
AHD:[¹-m²j“¹n]
D.J.[i6m#d9in]
K.K.[!6m#d9!n]
v.（动词）
i.mag.ined, i.mag.in.ing, i.mag.ines
v.tr.（及物动词）
To form a mental picture or image of.
想象：在头脑中形成某事物的图象或形象
To think; conjecture:
想；设想：
I imagine you're right.
我猜你是对的
To have a notion of or about without adequate foundation; fancy:
猜想：在没有充分根据的情况下形成一个想法；幻想：
She imagines herself to be a true artist.
她幻想自己成了一个真正的艺术家
v.intr.（不及物动词）
To employ the imagination.
想象：运用想象力
To make a guess; conjecture.
猜想；推测
imag“iner
n.（名词）
imagine
[I5mAdVIn]
vt.
-gined, -gining
想象
Imagine you've been shipwrecked.
想象你遭遇到了船舶失事.
Try to imagine a jet which is more than seventy meters long and more than five stories high at the tail.
"试着想像一下一架喷气式飞机长七十多米,尾部比五层楼还要高."
以为；假想
I imagine him as a big tall man.
我以为他是个高大的人.
He imagines that people don't believe him.
他总是认为人们不信任他.

would

would

would