Look out! Don’t get too close to the house________ roof is under repair.

--Do you know the man _______ I shook hands just now?
--Yes, I know him. He is a famous actor.

Now the Internet is a popular channel　　　　the  public voice their opinions and show their strength.

Shawn returned to Iowa after the 2008 Games，　　　　， as is known to us， she had been brought up and trained to be a gold medalist of gymnastics.　　　　　　　　　　　　　　　　　　　　　　　　　　

Her voice was shaking despite the fact ________ she tried her best to control it.

The speaker mentioned some writers and books _____ were known to us.

It was in the garden of his old house _______ he grew up that he dug up a pot of gold.

He made three good friends in the university, ______ joined the army after graduation.

Humans are polluting the earth day by day, ________, of course, will cause punishment sooner or later.

It’s the same in China --- many people, ________ some are not overweight at all, are always going on diets or taking weight-loss pills, ________ are often dangerous.