Điền vào chỗ trống

----- Nội dung dịch tự động từ ảnh -----
Each summer hundreds of volunteer
work projects (or work camps as
they are called abroad) take (1)
p_____ all over Europe and the
United States of America. These
projects offer young travellers
an exciting opportunity (2)
spend two or four weeks working
on a community service project Ⓡ
for free room and board.
Volunteers have the (3) ch____ to
learn more about the local