The study surveyed 500 families and found that the main ________ problem people suffered was tiredness, followed by loneliness and anxiety.
The experiment shows that proper amounts of exercise, if regularly, can improve our health.
Tell me how to operate the electronic computer, ______?
He was told that it would be at least three more months ___________he could receover and return to work.
The man pulled out a gold watch, _________ were made of small diamonds.
The seaside here draws a lot of tourists every summer. Warm sunshine and soft sands make ________ it is .