Sustainable Development and Past Perfect

What are those?

• Clean energy

• Solar panels

• seashore

• sun panels

Choose the picture representing "environmentally friendly"

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Choose the appropriate term:

• Greenhouse damage

• Greenhouse effect

• Greenhouse pollution

• Ozone layer

What does Solar Radiation do?

• it absorbs greenhouse gasses

• it produces greenhouse gasses

• it passes through the atmosphere

• it increases hitting

Humans had recycled plastic bottles from the seashore

• Los humanos están reciclado botellas de plástico de la playa

• Los humanos reciclan botellas de plástico de la playa

• Los humanos han reciclado botellas de plástico de la playa

• Los humanos habían reciclado botellas de plástico de la playa

I had created a masterpiece!

• You did it right now

• You did it a long time ago

• Your friend did a masterpiece

• You baked a cake yesterday

En past perfect tense usamos el uxiliar del verbo "to have" en...

• pasado

• presente

She _______ met Lucy before the party.

He had __________ (go) to Concepción two times.

To form the past perfect tense you use the past tense of the verb "to have," which is had, and add it to the _____________of the main verb.

• present tense

• past tense

• past participle

• present continuous