The accident took place ten days ago.

The news shockedthe public, _____ to great concern aboutstudents’ safety at school.[ ]

Whether we’ll hold the sports meeting depends on the weather, ___________?

With the help of the new equipment, our factory produced ________ VCD players in 2001 as the year before.

Two explosions near the finish line of the BostonMarathon killed at least 3 people and injured more than 180 others, andcurrently FBI has figured out how it __________.