题目内容：

下列句中加横线的文言虚词的意义和用法相同的一项是 （      ）

A．①吾今且赴府                    ②不出，火且尽

B．①亦将有感于斯文                ②此非孟德之困于周郎者乎

C．①既其出                        ②当其欣于所遇                                                                                                                                                                                                                                                                                                                                                                                             

D．①及其所之既倦                  ②纵一苇之所如