Pop only the active-voice academic sentences.

Exercise and reference answers

Other terms

1. The gene was discovered by researchers.
2. The bridge was designed by engineers.
3. The hypothesis was tested by scientists.
4. The data was analysed by students.

Matching terms

1. Researchers discovered the gene.
2. Engineers designed the bridge.
3. Scientists tested the hypothesis.
4. Students analysed the data.

Instructions

Pop only active-voice constructions.

Explanation