world war 1 broke out at the b_____ of the twentieth century.

world war 1 broke out at the b_____ of the twentieth century. The World War One broke out in 1914与 World War One broke out in 1914 第2句对 为什么 为什么不加THE? world war World war In ___ 1930’s,___ World War Two broke out.选项:b、/,the d、/, it was said that the second world war broke out in 1939 时态 翻译 it was not long____（引导词）the Second World War broke out the world war i in 1914 and ()in 1918.A broke out ,over B was broken out,was over C broke out,endD broke out,ended When the World War II ______,he was still a chil;a、has broke out b、was broken out c、 broke out d、 has been broke out world war 1 要加 the The second world war broke out in __the second world war broke out in __A 1930‘s B the 1930s C the 1930’s D 1930s答案选c,可是我认为bc都是对的,怎么解释 My grandfather suffered a lot during World War Two___ broke out in the 1939.y grandfather suffered a lot during World War Two___ broke out in the 1939.这里为什么填which,而不填 when ? World War Ⅱ 可以写成World war after world war My grandfather was born in the year __ World WarⅡbroke out.A.which B.when C.on whichD.during which 感激不尽~ world war Ⅱ是不是读world war second ? World War Ⅰ的读法World War Ⅰ是应该读成the first world war 还是world war one? World War II 怎么读