Choose the correct answer

----- Nội dung dịch tự động từ ảnh -----
1. The (preservation / destruction) of the natural environment is impor-
tant for maintaining a healthy ecosystem.
2. We can (lengthen / shorten) the time it takes to travel between villages
by building a new bridge.
3. The local bakery offers free (delivery / donation) of their fresh bread to
elderly residents living alone.
4. Every morning, I see the hard-working (gardeners / garbage collectors)
collecting trash on our street.