Do you think the Democratic People’s Republic of Korea will all the contents of the Korean nuclear issue?
The traditional view is _____ we sleep because our brain is “programmed” to make us do so.
We arranged to meet at the cinema at 7:30, but he failed to ______.
Miss Green contributed fifty dollars, but she wished she could contribute _____.
When _____ different cultures, we often pay attention only to the differences without noticing the similarities.
Hundreds of species are declared to _____ in the coming century.