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Read the text and complete using the verb to be?

Read the text and complete using the verb to be.

5Gabyalejo123

En resumen

At present pollution is, (. ) is, (. ) are, (. ) are, (. ) are (. ) are.

Mejor respuesta

Jennimuñoz

2

At present pollution is, (.

) is, (.

) are, (.

) are, (.

) are (.

) are.