It is strange that the well-behaved gentleman be so rude.A. shouldB. needC. mightD. would

问题补充：

It is strange that the well-behaved gentleman be so rude.

A. should

B. need

C. might

D. would

答案：

(答案→)A. should

B. need

C. might

D. would

解析：句意：真是非常奇怪彬彬有礼的这位绅士竟然如此地粗鲁。这里是固定句式，在句型 It is important (necessary, strange, impossible, natural) that .... 中，that后面的从句中的谓语动词用：(should) + 动词原形。这里是虚拟语气中的一种情况，故选A。