他已經(jīng)在北京呆了十周了:
he has been in beijing for ten years.
He said :"I bought this book two years ago"改為間接引語(yǔ):
he told me that he bought this book two years ago一般過(guò)去時(shí)改為間接引語(yǔ)時(shí)時(shí)態(tài)要變成過(guò)去完成時(shí)吧，我不明白的是間接引語(yǔ)時(shí)是否是He said that he had had(還是bought) this book ten years before.o 對(duì)。he told me he had bought this book two years before