PAST SIMPLE PAST PERFECT SIMPLE PAST PERFECT CONTINUOUS | Baamboozle - Baamboozle

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By the time they reached the peak of the mountain, they ______ (climb) the Andes for many days.

had been climbing (Past Perfect Continuous)

We _________ (explore) the ancient ruins of Machu Picchu for hours before the guide asked to come back.

had been exploring

Before the storm hit, we _____ (walk) for many hours through the ancient ruins of Pompeii.

had been walking (Past Perfect Continuous)

Before the museum closed, we _______(admire) for several hours the intricate artwork.

had been admiring (Past Perfect Continuous)

PAST SIMPLE PAST PERFECT SIMPLE PAST PERFECT CON ...