College students need to be taught more skills and information to enable them to meet the challenges （）face everyone in daily life.

Before any passenger can get on an airplane at the airp...

单项选择题Before any passenger can get on an airplane at the airport, he must go through security checks to make sure he （）anything dangerous.

People have to know how to control money; （）, it can co...

单项选择题People have to know how to control money; （）, it can control them.

Another thunderstorm slammed （）the mountain as I limpe...

单项选择题Another thunderstorm slammed （）the mountain as I limped up the path to the house.