V. Put the correct form of the verbs in blankets. (1pt)

23. If we pollute the air, more people (have) breathing problems 1......................................

24. Yesterday, after Ha (go) to school, her mother went shopping. 2.......................................

25. Homeless people just (take) to safe areas. 3......................................

26. If I (have) one billion dollars, I would plant more trees and flowers around our city. 4..................................