The World War II________in 1939 and________in 1945. A. begin/ends B. had begun/ended C. began/ended D. began/had endedĐoạn văn36/40The World War II________in 1939 and________in 1945. begin/ends had begun/ended began/endedbegan/had endedGiải thíchĐáp án đúng là C. began/ ended