and short of breath, Andy and Ruby were the first to reach the top of Mount Tai.
Is this research center ________ you visited the modern equipment last year?
The humans are destroying nature day by day, ________ of course, will cause severe punishment from it sooner or later.
The people, ________ had been damaged by the flood, were given help by the Red Cross.
There is no such place ________ you dream of in all this world.
The bread my wife makes is much better than ________ you can buy at a store.