题目内容
【题目】Before p an operation on a patient, Dr. Lee always does a series of careful preparations.
【答案】erforming
【解析】句意:在给一个病人动手术以前,Dr. Lee总是做一系列的细心准备。before doing sth."做某事之前",所以答案是performing。
练习册系列答案
相关题目
题目内容
【题目】Before p an operation on a patient, Dr. Lee always does a series of careful preparations.
【答案】erforming
【解析】句意:在给一个病人动手术以前,Dr. Lee总是做一系列的细心准备。before doing sth."做某事之前",所以答案是performing。