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.
Great changes _______ in this city over the past five years.
If you see Jack please give my __________ to him for not having written to him.
Do you think the plan _________ out as soon as possible?
—Why do you eat so little? —I’m _______ a diet to reduce some weight.
Some policemen should be sent to _______ them _______ the animals.