要判断肺结核有无传染性。以下最可靠的依据是

A．PPD试验呈阳性反应

B．痰中找到结核杆菌

C．X线胸片可见钙化点和空洞

D．血沉增快

E．有发热、乏力等结核中毒症状

I wish you _____ me in peace-I've got a lot of work to do. [ ]

A. had left

B. would leave

C. will leave

D. leave