This regulation became effective on January 1st, 2016 and____to

相关题目

• Mary decided to give up her job for the ____ of her children.
• Watching television has its（ ）as well as its advantages.
• We should take some（ ）to stop the increase in crime.
• The tourist industry（ ）greatly to the economy of that country.
• Without tax, it would be（ ）to pay the soldiers and policemen.