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The young scientist has made such great achievements in his chosen field ______ nobody else can make.

---Where did you first meet your boyfriend?
---It was in the department store ______ he worked.

Dr. Josh has started a social enterprise ____ young people can get involved in helping the community.

He made another wonderful discovery, _______________ of great importance to science.

After a few days together, they got to the point _______ they could read each other’s thought.

“You'll have to wait for two hours, ________ is, at about 11：30, ________ the medical report will come out, ”the doctor said to me.

I am no longer allowed to smoke in any room ______ he might use.

I got an email from Susan, _______________ said she was going abroad for sightseeing.

In English class, our teacher often creates an environment _____ we are given the opportunity to solve problems ourselves．

Fans from miles around crowded into the stadium for the concert of Jay Chou on September 4^th, 2010, _________ are popular with teenagers.