问题
选择题
It’s necessary to be prepared for a job interview. the answer ready will be of great help.
A．To have had
B．Having had
C．Have
D．Having
答案
答案：D
考查非谓语动词。句中Having the answer ready为动名词短语作主语，句意：准备工作面试时有必要的，准备好回答是很有帮助的。