the specialist in diseases of the eye unfolded a plan of treatment() would retore the patient's vision.
问题描述：
the specialist in diseases of the eye unfolded a plan of treatment() would retore the patient's vision.
A.he was sure which B.which he was sure C.he was sure that D.he was sure
答
Bwhich he was sure would retore the patient's vision是定语从句,其中he was sure是插入语.插入语要放在从句的中间,不能放在从句的前面,排除A、C.把he was sure拿掉后,就是which would retore the patient's visio...