关于非谓语动词的一道题,___with so much trouble,we failed to complete the task on time

关于非谓语动词的一道题,___with so much trouble,we failed to complete the task on time
关于非谓语动词的一道题,
___with so much trouble,we failed to complete the task on time
A:Faced B:Face C:Facing D:To face
然后答案书上说,如果把with去掉的话,C也正确,为什么去with,.with在句中充当什么词?迷惑了几天,请高手分析下.