1- Alexander found an old medicine. True( ) False( ) 2- Many other doctors were also working on this medicine. True( ) false( ) درجای خالی کلمه مناسب قرار دهید. 3-This was the ........ penicillin. 4- Alexander Fleming was a great .......... . به سوالات زیرپاسخ کامل دهید؟ 5- What did Alexander find? 6- When was Alexander doing research in his laboratory?