Attention, coffee lovers! We have for you, the best coffee machine _____ invented.

The hotel was nice; the weather was warm; the beaches were beautiful.____ I’d say it was a great vacation.

 He saw the MP4 player a moment ago, but he didn’t know how it disappeared _______.

The conservation area is very important for preserving many animals and plants, which would ______ run the risk of becoming extinct.

Professor White has written some short stories, but he is________known for his plays.