what did he see when he went into the office?这里为什么用when而不用别的

what did he see when he went into the office?这里为什么用when而不用别的 what did man see when he walked by the lake? When he went into the room ,he ( ) all the lights what did the writer feel when he was told to see his boss ? Did he have a key?这里的he是第三人称,为什么不用has而用have? when did you come into the restaurant?这里为什么用come are或get可以么 what did he try to do when he went to school的翻译 The bady stopped crying when he saw his mother为什么这里不用was sto When I see the envelope from school in the mail 中为什么用see 而不用 when his sword fell into the water,he went into the water to He saw a man come into the outer office.为什么不用came into? What does he he usually do on sundays?为什么这里用does/而不用do?