Past simple and past continuous 4 Study the examples. Then complete the rules
with past simple and past continuous.
While they were skiing across Greenland,
Laura fell through the ice.
They were skiing across Greenland
when Laura fell through the ice.
RULES
1 We use the — to describe past actions
that were in progress.
2 We use the to interrupt the action that
was in progress
3 We often use when before the and
while beforе the __​

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