1. Teaching this lesson was of 15 minutes' duration.
2. I taught this lesson for a 15 minute period.
3. I taught this lesson for a period of 15 minutes.
4. I taught this lesson of15 minutes' duration.
Please correct the sentences.
1. Teaching this lesson was of 15 minutes' duration. No, say instead eg Teaching this lesson took 15 minutes, 2.
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1. Teaching this lesson was of 15 minutes' duration. No, say instead
eg Teaching this lesson took 15 minutes,
2. I taught this lesson for a 15-minute period. OK
3. I taught this lesson for a period of 15 minutes. OK
4. I taught this lesson of15 minutes' duration.
Please correct the sentences. No, say instead