she will be an actress( )two years

she will be an actress( )two years 。为什么用in而不用after?he said he found learning chinese( )because he couldn't understand people为什么用frustrating而不用frustrated(1介词IN 加时间段表示将来； AFTER 加时间点表示将来,加时间段表示过去（2）FRUSTATING 用来修饰事物,FRUSTRATED 用来修饰人的,frustrating 形容词 adj。1。产生挫折的；使人沮丧的,令人泄气的,令人懊恼的I found the delays intensely frustrating。我觉得这些延误极其令人沮丧。It was a demeaning and ultimately frustrating experience。那是一次有失颜面并且令人沮丧至极的经历。frustrated 形容词 adj。1。产生挫折的；使人沮丧的,令人泄气的,令人懊恼的I found the delays intensely frustrating。我觉得这些延误极其令人沮丧。It was a demeaning and ultimately frustrating experience。那是一次有失颜面并且令人沮丧至极的经历。 再问： 这里的frustrating 修饰的不就是he这个人吗？FRUSTRATED 用来修饰人的， 再答： frustrating 充当 Chinese 宾语补足语 Someone finds Chinese ( frustrating )=某人发现汉语是令人沮丧的，令人懊恼的 Someone finds Chinese frustrating = Someone finds that Chinese is frustrating 希望这次能理解明白并及时采纳，谢谢！