5вопросов past perfect и past perfect progressive

Past Perfect:
I called Jim too late, he had already left.
We had lived in Paris for 12 years before we moved to America.
She had written only two letters by noon.
She had just made coffee when I arrived.
She had left by the 1st of June.

Past Perfect Progressive:
I had been typing this text for 2 hours and then found it on the Internet.
I had been waiting for his airplane for 2 hours when it was announced about delay.
They had been talking for over an hour before Tony arrived.
She had been working at that company for three years when it went out of business.
How long had you been waiting to get on the bus?