Re: She felt pity
That's fine if there are other old men around. The relative clause defines which old man the speaker is talking about. If there is only one old man, and the speaker is adding information about him, then we need a comma after 'man.
Originally Posted by Bassim
It's difficult to say without more context.
2. A 14-year old girl, who has suffered terrible injuries, is still in a coma.
3. He was under enormous pressure, which he could not withstand.
I'll leave #4 for the moment.
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