His son had entered the university _____he came back to China.A afterB if C becauseD before选哪一个

His son had entered the university _____he came back to China.A afterB if C becauseD before选哪一个 英语翻译His son had much trouble （）（）conversations. when his father knew that his son had made thesame mistake,his--ran out.A.patience Bconfidence为什么选a? he had already left home when his son arrived home 改为疑问句, 3.Mr Wang had many reasons a______ his son to become a professional soccer player. the chemist was surprised that his son did not like the way he had doneAthatBwhichChowDon which Mrs.Smith had a small son.His name was Billy开头的文章 his mother entered his room without p__ 翻译No sooner had he gone to the garden than his son went to play with his classmates his son的音标 请选择并讲解He ___hardly ___the station when the train___A.had,entered ,had left B / ,entered ,left C .have ,entered ,left D.had ,entered ,left he puts all his effort into -----(practice) 英语英语书上这么写 she had put most of her effort into ballet training befor she entered the film industry. 用before还是after?The roof fell ______ he had time to rush into the house to save his son. The old man[ ][ ][ ]his son She is his son 改错 My son said the man had hit him( ) A.in the face,B.on his face.C.on the face .D.in his face not only__the computer he___been sold by his son for gambling debtsbur also his new car(has:had)为什么不填/：has? Mr Declan was very angry when he found his son had ____ of his warning .Mr Declan was very angry when he found his son had ____ of his warning and went to the bar with his friends.A nothing B neither C none D either 答案是C 为什么不能