`1`. Nam asked his teacher where he/she lived
`->` Câu gián tiếp Wh-question: S + asked/wondered/asked sb ... + wh-word + S + V(lùi thì)
`2`. It is expected that the government will have measures to protect and preserve our-man made wonders.
`->` Câu bị động chủ ngữ giả: It + to be + believed/known/expected/said... + (that) + mệnh đề.