题目内容：

Only by increasing the number of doctors by 50 percent ___ properly in this hospital.
A.can be the patients treated B.treated can be the patients
C.the patients can be treated D.can the patients be treated
为什么选D

优质解答

only引导的条件状语从句要语序顺序要倒置,正常语序是The patients can be treated by increasing the number of doctors by 50 percent.

追问：

那是选D？？？