跪求英语高手作下面的题
改写下面句子,用He作主语:1.Ihaveanewbook.2.Iliveintthecountry.3.Ishallseeyoutomorrow.4.Icanunderstand.5.Imustwritealetter.6.Imaycomenextweek.
7.Idoalotofworkeveryday.8.Ididalotofworkyesterday.新概念英语第3页和第一课测试。