Assignment task: Change the following passive sentences into active sentences
- Plant seeds are dispersed by wind.
- The relationship was investigated by Smith et al.
- The results have been analyzed by us.
- Experiments are conducted by scientists to test hypotheses.
- Before the semester was over, the new nursing program had been approved by the Curriculum
- Committee and the Board of Trustees.
- With five seconds left in the game, an illegal time-out was called by one of the players.