"when" is correct to use in 1)
"She had woken up when I was still sleeping."
2) is fine, it seems.
I think in 3) you could just use the Present Perfect "Please note that the job has been completed."
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"when" is correct to use in 1)
"She had woken up when I was still sleeping."
2) is fine, it seems.
I think in 3) you could just use the Present Perfect
"Please note that the job has been completed."