Fill in the blanks.
1When they ..............., they could detect several irregularities.
Wrong!
The past-time clause needs the past verb phrase "started an investigation".
2The authorities ............... these undesirable activities immediately.
Wrong!
The active subject "The authorities" needs the active modal verb phrase "must stop".
3Farmers in our country suffer ............... overdependence on rain.
Wrong!
Before a noun phrase, use the preposition phrase "because of".
4Do you think that the agricultural sector ............... more attention than the industrial sector?
Wrong!
The singular subject "the agricultural sector" needs the verb form "deserves".
5Automation in agriculture and farm management ............... more unemployment.
Wrong!
The singular subject "Automation" takes the present perfect form "has led to".
Done.
Score: 0/5
Answers
- When they started an investigation, they could detect several irregularities.
- The authorities must stop these undesirable activities immediately.
- Farmers in our country suffer because of overdependence on rain.
- Do you think that the agricultural sector deserves more attention than the industrial sector?
- Automation in agriculture and farm management has led to more unemployment.

