1.
She wrote with her own hand the letters, which under normal circumstances she dictated
to her secretary.
2.
I do wish you had brought the children to call on me. 3.
It's necessary that i offer you something. ИЛИ It's necessary that i should offer
you something (оба варианта правильные)
4.
Meg was in a perfect fight lest he should guess right too soon.
5.
If he had understood the situation, he would have acted differently.
6. Oh, if only you were as you used to be.
7.
They came to the agreement that they would meet for talks twice a year.