对深达膜龈联合的牙周袋应采用的最佳手术治疗方法为()

A．牙龈切除术

B．翻瓣术

C．袋壁刮治术

D．游离龈瓣移植

E．以上均不正确

I had wanted to clean out the basement ______, but unfortunately he came back before I did it. [ ]

A. in a hurry

B. in his absence

C. in his memory

D. in his company