. Choose the correct articles.
1. When ... sun shines, we say it is sunny.
a) - b) the c) a
2. Plants can’t live without ... air.
a) the b) - c) an
3. We live on ... Planet Earth.
a) an b) - c) the
4. How do ... sun, ... air, and ... water make ... weather?
a) the, the, a, the b) the, the, the, the c) -, a, the, the
5. ... Lake Baykal is ... deepest lake on ... Earth.
a) -, the, the b) the, the, the c) the, the, an