英语翻译Jack is twice as old as Jill,but in five years time he w

Jack is twice as old as Jill ,but in five years time he will Jsck is twice as old as Jill,but in five years time he will Jack is twice as old as Jill, 英语翻译Jack is twice as old as Bill,who is eight years younger 猜猜看（英语）Jack is twice as old as Bill,who is eight years young jack is twice as old as Bill,who is 8 years younger lhan Ben that's easy,Bob is twice as old as jack,so he is now thirty. In 15 years she will be twice as old as her son.How old is s when David is twice as old as he is now he will be four time 英语翻译who is half as old again as Jack(从句中的）出自：Jack is twice a Jack is twenty years old.but he has only five birthdays.why? Mary is 12 years old.two years ago,she was twice as old as h