Below ____ an article about advertisements ____ by a student for her English project.

Safety in schools has been of great concern because of frequent reports about accidents ________ students got injured or killed while in school.[ ]

It’s not necessary to explain the truth________ there are air, water and sunlight , there are living things.

ked in a car factory for four years, ______ he founded his own company in his hometown.

s our new office, Jim—Yes, and ______．