单选题A big disaster took 

问题补充：

单选题Abigdisastertookplacein________1960swhenIwasin________teens.A.the;theB.the;/C./;myD.the;my

答案：

D解析概指年代时用：in the+年代+s/’s；概指年龄时用：in one’s+年龄+s。