Read the following passage and then choose the best answer
The most important celebration holiday inChinais the New Year. At this time shops are closed. The people celebrate by feasting, by paying friendly calls to their neighbors, and by visiting the temples to make promises for the New Year. Children parade through the streets carrying colorful lanterns and paper figures. Firecrackers similar to those used in theUnited Stateson the Fourth of July are set off. In fact, on the night that the New Year's celebration begins, the exploding fireworks make so much noise that no one is able to sleep.
The time of the New Year is also the time at which Chinese people refresh their homes. For example, the windows, which are made of thick rice paper, are torn down, and new ones are put up. This is also the time during which people pay their debts. Every man tries to settle all his bills before the beginning of the New Year.
Trả lời câu hỏi dưới đây:
The word "ones "in the second paragraph refers to ..................... .