对这篇英语短文用英文提几个问题并附上答案.谢谢

Atschool,LittleJohnnywastoldbyaclassmatethatmostadultshideatleastonedarksecretandthismakesitveryeasytoblackmailthemmerelybysaying,"Iknowthewholetruth."

SoLittleJohnnydecidestotryitout.Whenhearriveshomefromschoolthatday,hesaystohismother,"Iknowthewholetruth."Hismotherlooksshocked,quicklyfinds$20,andgivesittohim,saying,"Justdon'ttellyourfather."

Quitepleased,LittleJohnnywaitsforhisfathertogethomefromwork,andgreetshimwith,"Iknowthewholetruth."Hisfatherlooksshocked,quicklyfinds$40,andgivesittohim,saying,"Justdon'ttellyourmother."

Thenextmorning,LittleJohnnyisonhiswaytoschoolwhenheseesthemailmanathisfrontdoor.Theboydecidestotryagain."Iknowthewholetruth."

Themailmandropshismailbag,throwsopenshisarms,andsays,"Thencomegiveyourrealdaddyanicebighug!"

小强在学校听一个同学说,大多数成年人都至少藏着一个不可告人的秘密,而且这让他们很容易被敲诈,只要说句“整件事我都知道了”就行.

所以小强打算试一下.那天他从学校一回到家里,就对妈妈说：“整件事我都知道了.”他妈吓坏了,赶紧找出20块钱给他,说：“千万别告你爸啊.”

小强挺得意,等到他爸下班回家,迎上去就说：“整件事我都知道了.”他爸吓坏了,赶紧找出40块钱给他,说：“千万别告诉你妈啊.”

第二天早上,小强出门去上学,看见邮递员在他家大门口.这孩子决定再试试：“整件事我都知道了.”

邮递员撇下邮包,张开双臂,说：“那就给你亲爹来个大大的拥抱吧!”