Nowadays children have to take arts, music and sports classes in their free time ____ busy schoolwork.
The special dance,Gangnam Style,is ________ popular all over the world and was even performed in the White House.
The tourist attraction is so designed to________our local customs and cultures in some aspects.
Nowadays,more Chinese provinces________education reforms that will allow children of migrant workers to sit college entrance exams locally.
According to a new regulation,a “green card” is________only to foreigners who live in China for 10 constant years.
I prefer to deal with big companies because their service and reputation are better than ________ of small ones.