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1. The two prefixes spelled <un> have different meanings:
In the word unable, un- means ________. We will call this prefix un-.
In the word unlock, un- means ________. We will call this prefix un-.
2. Sort the following words into the two groups below:
3. Not every word that starts with the letters <un> contains a prefix un-. Read the following words and then sort them into the two groups below:
4. Be ready to explain how you identified the words that do not contain a prefix un-.