joined the army什么意思?

joined the army什么意思? he joined the army last year It is 3 years_____he joined the army. he joined the army last year.变为含现在完成时的句子→→It __ __ a year __ he joined the army.空里填什么 It is four years since I joined the army.啥意思 He____for three years A)has joined the army B) has been in the army C) has been an army这题为什么选B不选C呢? John joined the army two years ago等于___two years since he joined the army my uncle joined the army two years ago（保持原句意思）MY uncle has()()the army for two years my mother joined the army last years 同义句 he joined the army last year 改成现在完成时 He is a ____ .He joined the army last year. he joined the army last year 改成现在完成时 joined the army 这句话的汉语是什么? It is said _______ he has joined the army. Jack joined the army in 2006.(改为同义句)It ____ _____ three years _____ jack joined the army. his brother joined the army two year ago改同义句 空 two years 空 his brother joined the army He_____for twenty years.A.has joined B.has been in the army C.joined D.have saved the army army什么意思