The document provides instructions for a practice exercise on using "when" and "while" in sentences. It has three parts: Part I explains the difference between using "when" and "while"; Part II gives sentence starters to complete with "when" or "while"; Part III provides additional sentence starters to complete with one of the words. The goal is to practice correctly using "when" to refer to a specific time and "while" to refer to ongoing actions.

1. Practice File_When-While
Part I. Watch the video and complete the sentences below:
I was watching TV ___________you called.
____________ I was watching TV, you called.
• WE use ___________ with completed actions in the past. The interrupting event.
• WE use ___________ with actions that were going on at a specific time in the past.
Part II. Watch the video and make sentences with “when or while”
1. “cook –arrive home”
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2. “Drive – start raining”
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3. “play football – break my leg”
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4. “work in japan –meet my wife”
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Part III. Watch the video and make sentences
1. drive home – car break down
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2. walk in the rain – see them
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3. walk in the park – find this dog
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4. put on some make-up – bus arrive
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5. make salad – you knock
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6. send an e-mail – you call
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