All the task __________ ahead of time, so they decided to go on holiday for a week.

A．having finished

B．had finished

C．having been finished

D．had been finished

女，35岁，鼻塞，流涕，鼻中带血，时有绿色胶样分泌物，抗生素治疗无效，最可能的诊断是()

A．慢性上颌窦炎

B．霉菌性上颌窦炎

C．上颌窦囊肿

D．上颌窦癌

E．上颌窦息肉