Complete the sentences with a, an, the or Ø (no article).
1 We were about to start our hike when we saw that
__tree had fallen across__ trail.
2 In 20th century, almost fifty percent of the global
population lived in _cities.
3 In fact, scientists expect _major earthquake to
hit_Los Angeles soon.
4 There was no
running water in __ village where
my granddad lived as child.
5 _Europe isn't largest continent in world.