He join the army when he was fifteen(保持原句意思）He join the army__ __ __ __fifteen.

It is ten years since he ____(join) the army How long before did he join the army?改错. How long before did he join the army?改错 he said he ___(join) the army after he left the college He join the army when he was fifteen(保持原句意思）He join the army__ __ __ __fifteen. 一般来讲是join the army 还是 join army 还是join an army 同义句改写：He is old enough to join the army.用“so...that...”改写,谢谢^^ He is so young that he can't join the army(改为同义句)He is ____ young ____ ____the army My brother ___(join) the army when he ___ (be) 20 and he ____(be) in it for 5 years He wants to join the army when he leaves school.Te be a s____ is his dream. my brother is 16 years old,he cantjoin the army ( 同义句）my brother is too ___ to join the army ( 同义句） so that和too to一样吗?比如He is old enough to join the army.（保持原意,改写句子）He is ____ old ____ he can join the army.空里可以填too He is old enough to join the army.讲解一下这个句子的各个成分及语法 Jim _____ (join) the army when he grows up.用所给词的正确形式填空 并说理由 My brother has ( )( )( )of the army for five years.原句是join the army five years ago. Jim isn't old e() to join the army.(军队) join in the army里的in为什么要去掉 My brother_（join）the Army lost year