The combined sentence with as is We tucked ourselves in bed as it was very cold outside.
What are conjunctions?
Conjunctions are words that are used to add two clauses together to make a complete sense.
Some conjunctions are and, but, as, unless, etc.
An example is I ate blueberries, and he ate strawberries. Here 'and' is conjunction.
Thus, the sentence is We tucked ourselves in bed as it was very cold outside.
Learn more about Conjunctions
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