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.
Eating too much fat can _______ heart diseases and cause high blood pressure.
We thought of selling this old furniture, but we have decided to _______ it.It might be valuable.
It was hard to describe the nightmare she had _______.
News reports say peace talks between the two countries _______ with no agreement reached.
—The boss said we had only three days to finish the work. —Don’t worry.We have already _______ two thirds of it.