Learning to play basketball calls for perseverance, strength, time and skill. _____, it’s not a simple thing.
We hope the building project ___will be completed as soon as possible because a lot of citizens are complaining about the noises.
It seemed a pity they ate it after all the trouble they had _____in making it.
____twice a year, whether it is a car or a bus or a truck, is the rule that every driver must obey in this city.
—Lucy doesn’t seem to be what she was. —No. ____so much in the war has made her more thoughtful.
Beijing, ______for hosting the 2008 Olympic Games, ____its first loop (圈) of green belt around the downtown, ____an area of 102.3 square kilometers, in the past three years.