动词不定式的用法解析 ,练习题及答案答:be thought,be reported,be known等。2)主+谓(希望)+to do(表将来)/to have done (表过去原本希望,但未能实现)谓语动词:hoped,meant,wanted,expected,wished,planned,promised,disired等。3)不定式作主语,常用形式主语it代替。A.It takes sb.some time\some money\some trouble to do sth.B I...