Thousands of people (save) ____were saved____________because scientists had warned them about the volcanic eruption.

24. Tet is a festival which (occur) __occurs____in late January or early February.

25. Recently, there (be) ___have been_______________a lot of changes in our city.

26. All buildings in Sweden (heat) __were heated________________by solar energy in 2015.

27. If the weather were better today, we (go) ___would go_______________on a picnic.

Thousands of people were saved because scientists had warned them about the volcanic eruption.

24. Tet is a festival which occurs in late January or early February.

25. Recently, there have been a lot of changes in our city.

26. All buildings in Sweden  were heated by solar energy in 2015.

27. If the weather were better today, we  would go on a picnic.