(2014·福建高三第二次联考)China’s labor supply will continue to rise，despite the fact that the working­age population________

One of our rules is that every student ______wearschool uniform while at school.

They didn’t do it by themselves instead of Uncle Wang for help.

There is a new problem involved in the popularity of private cars_____road conditions need _____. [ ]

There are five _______ on the floor.