Although he studied very hard, he failed in the entrance exams to college, （） was really a pity.

His beloved son died in a car accident two years ago, （） cast a shadow over the rest of his life.

The manager fulminated against his secretary, （ ） surprised me.

The government claimed that tax cuts benefited the poor most, （）has yet to be proved in practice.

A survey was recently carried out on the reasons why some people took drugs,（）were shocking. 

He turns out to be such an extremely successful actor,（ ） none of his former classmates is. 

The recent Yahoo breach, （ ） included one billion user records stolen in 2013, is a reminder of the danger.

The Red Cross gave help to the residents, （）had been damaged by the flood. 

That was the kind of person（）he was. 

You must tackle the hardest problem （ ） is confronting your business you need to know whether or not you can go through it.

He became a successful actor （ ） his father never was.

Gradually the road climbs among high mountains and through a dark forest（）huge trees shut out the light with their thick towering leaves. 

As for the place（ ）she was buried, it will always remain in the hearts of those who cherish it.

Professor Smith is the teacher（）I think gave me the correct ways of learning a language.

According to a study on children's behavior, the time（ ）the children spend in their one-way relationship with television people will affect their relationship with real-life people later in their lives. 

It was an agreement（）the details could not be altered.

I remembered the last words（ ）God spoke to Moses before his death.

The children （ ）we so lovingly indulge might just hold us responsible for their misfortune. 

The bar in Barcelona（ ）I met my wife is still there.

The project（）they have been working for two years is a total failure.