______ you always think about your future carefully and work hard, I’m sure you will realize your dream some day.

234. After the 1911 Revolution, China began to use the Gregorian calendar (solar calendar) and at the same we have also used the lunar calendar(阴历) in which a leap year (闰年)______ every four years.

254. — We are going to have a volleyballmatch on the playground tomorrow afternoon.— Really I ________ watch it.

I know ______ , I understand why theyneeded so much money.

In his lecture, the professor referred to the belief, in contrast to all other countries, ________ the elderly are wise, ________ is particularly dominant (占优势的) in the Chinese culture.