【文章內(nèi)容簡介】
uilding roads. (主動 ) = ?He worked as a worker who/ that built roads. ?A pop star is a singer singing pop songs (主動 ) = ?A pop star is a singer who/ that sings pop songs. ?This is a picture painted by my father. (被動 ) = ?This is a picture which was painted by my father. ?The new train designed by this expert will be tested next month. (被動 ) = ?The new train which was designed by this