Раскройте скобки и употребите глагол в соответствующей временной форме IndefiniteActive и Passive
1.Many accidents (to cause) by dangerous driving.
2.Two hundred people (to employ) by the company next year.
3.S. Kovalevskaya (to make) a valuable addition to the results submitted by famous scientists.
4.The roof of the building (to damage) in a storm a few days ago.

1. Many accidents are caused by dangerous driving.2. Two hundred people are employed by...3. S.Kovalevskaya made...4. the roof of the building was damaged ...