Question

【题目】His mother was badly ill. The doctor said that she had to ______at once.

A. operate B. be operated C. operate on D. be operated on

Answer 1

【答案】D

【解析】

句意“我的妈妈得了严重的病，医生说她要立刻做手术”。operate on sb做手术，排除A和B。主语she与operate之间为被动be done排除C，故选D。