Change the following statements into Passive ones.

Пример:
People celebrate Remembrance Day in many countries.
Remembrance Day is celebrated in many countries.

1. People plant many red tulips in parks.
2. Writers describe the war in their books.
3. Schoolchildren invite veterans to their meetings.
4. My schoolfriends made a wall chart about the Great Patriotic War.
5. We learned two new songs at the English lesson.
6. Our teacher took us to the picture gallery.
7. We gave many presents to our guests.