BECAUSE HE WAS UNFAMILIAR WITH THE LIVING ______ IN AFRICA, HE CAM...

29. - DE KIEM TRA CHAT LUONG GIUA KI I
Tiếng Anh DE KIEM TRA CHAT LUONG GIUA KI I
29. Because he was unfamiliar with the living ______ in Africa, he came back to his hometown.A. life B. work C. conditions D. cost