7 Read the theory.Then complete the sentences in your notebook. Use: is or are. 1. The environment... affected by pollution in many ways. 2. Toxic chemicals ... dumped into the sea. 3. The Environmental Film Festival at Yale held every spring 4. Heat from the sun ... held in the Earth's atmosphere by greenhouse gases 5. The organisation ... based in New York, USA 6. Elizabeth ... set in 16th century England
