He paid 30% of the price for the house , and promised to pay by the end of the month.
We went through a period_______ communications were very difficult in the countryside.
Professor James will give us a lecture on the Western culture, but when and where _______ yet.
-- I have warned him of the danger but he insisted on going there alone. -- What a _______ boy!
After several months’ voyage, they came to _______ was called the “New World”.
Nowadays some people choose jobs for other reasons _______ money.