A美国人是医生。 2)E和俄罗斯人是技师。 3)C和德国人是技师。 4)B和f曾经当过兵，而德国人从未参过军。好(A American is a doctor. 2) E and the Russians are technicians. 3) C and the Germans are technicians. 4) B and f had been a soldier, and the Germans never joined the army. good)