题干


It was during World War II, ____ he was in his early twenties, _____ he joined the British Army.
A.that; whenB.when; thatC.when; whenD.that; that
上一题 下一题 0.85难度 单项选择 更新时间:2010-09-28 09:47:49

答案(点此获取答案解析)