Question

Then over dinner,Franklin mentions that he 　　well since he gave up smoking and Dr Candy,the local doctor,offers to write him a prescription for some medicine.

A．had not been sleeping	B．has not been sleeping
C．is not sleeping	D．was not sleeping

Answer 1

B

根据语法since是“自从……以来”，前面一般用现在完成时，表示一直睡不好，应用现在完成时的进行时。