How old is Jack?I think_____(he is)12.填空

How old is Jack?I think_____(he is)12.填空 How old is Jack Smith 英语翻译 how old is Jack's brother now when Jack is fifteen in the story? I'm having my 15th birthday party on June 14th.How old am MARY IS 12 YEARS OLD .TWO YEARS AGO ,SHE WAS TWICE AS OLD AS HER BROTHER JACK.HOW OLD IS JACK IS? 英语阅读短文回答问题阅读：How old are they?Jack,Dick,Ann and Kate are brothers and sisters.I don't know how old each of them is.I only know,one is 18,and one is 15.One of the boys is 16,and one of the girls is 17.I also know,Jack is olde 阅读短文短文Jack,Dick,Ann and Kate are brothers and sisters.Idon't know how old each of them is .I only know,one is 18,and one is 15.One of ehe boys is 16 and one of the girls is 17.I also know Jack is older than Ann,but Kate isn't.1.How old is 急mary is 12 years old .two years ago ,she was twice as old as her brother jack.how old is jack now? Mary is 12 years old.Two years ago, shewas twice as old as her brothei jack,How old is jack now? jack is a four-old( ). Who can stop many trucks with one hand?Many is 12 years old.Two years ago,she was twice as her brother Jack.How old is Jack now? 英语翻译Jack is twice as old as Bill,who is eight years younger than Ben,who is four years younger than Ted,who is half as old again as Jack.How old is Bill? 剑桥少儿英语第二级A第9课习题Jack is twice as old as Bill,who is eight years younger than Ben,who is four years younger than Ted,who is half as old as Jack.How old is Bill? 英语翻译Jack is twice as old as Bill ,who is eight years younger than Ben,who is four years younger than Ted,who is half as old again as Jack,How old is Bill? 英语翻译Jack is twice as old as Bill,who is eight years younger than Ben,who is four years younger than Ted,who is half as old again as Jack.How old is Bill?我翻译的不太明白, Jack is 15 years old,three times as old as his sister.How old will Jack and his sister be when he is twice as old as his sister? jack is twice as old as Bill,who is 8 years younger lhan Ben ,who is 4years younger than Ted,who ishalf as old again as jack.How old is Bill?谁能算出来 请速回. how old is