The ___of North Korea and South Korea is getting worse and worse these days.
It was a really ____ experience. Afterwards everybody was very ____.
All the books are not useful. Which of the following has the same meaning as this sentence?
When he came back from abroad, John told his parents about the cities and the people ____ he had visited.
She heard a terrible noise, ______ brought her heart into her mouth.
Rather than ____ on a crowded bus, he always prefers ______ a bicycle.