The young man was running in the street very fast为什么要用WAS,不用IS?还有类似于那些什么主语是单数时谓语是单数，但为什么加-S或-ES的?复数时就原形。注意，我说的是谓语动词，而不是名词。我不

What was the young man? The young man was happy that he saved the old woman(改为同义句)The young man was happy ------ ----- ----- -----. a young man was at the doctor's 意思 The young man was bored.改成一般疑问句. the young man was seen to ___(run)just now a young man was standing outside the door_____(nervous) Looking out of the window, ______ outside.A. it was a young man B. there was a young man the young man ------- They all agreed that the old man was stronger than a young man. the young man was found alive after being missing for several days 怎么was 跟found the young man was brave enough to save the boy from the cold water. The young man was happy that the clothes he wore to the party were _____ .(accept) He told me that the young man's work was beyond (讨论) He told me that the young man's work was beyond＿＿＿(讨论) 英语改错 the young man watched close what the engineer was doing. The boss was angry,because the young man __ always __ (come) late. The young man was ofen seen draw by the river.句中有一处错误、请找出.并改正 after graduation,the young man asked__to the place where he was most neede It was ___(courage) of the young man try to save the child求详解