It_______ten years since I saw Peter last.

Three years have ______ since we last met at the conference for Internet communication in

Susan______ a book about cooking last year, but I dont know whether she has finished it.A．

The machine needs a complete ______ since it has been in use for over ten years.A．maintain

This is the man ______ last night.A: whom I saw himB; whom I sawC; what I saw

I have no idea_________ they have kept in touch with me by E－mail since last year.A.what

The ten warmest years since 1860 happened after __A.1987B.1990C.2002