被称为“世界油阀”的是

A．马六甲海峡

B．苏伊士运河

C．霍尔木兹海峡

D．麦哲伦海峡

So you have to leave. How nice it ________ if you ________a bit longer![ ]

A. would be; could stay  

B. is; can stay

C. should be; stay  

D. was; are able to stay