This was, as you may think, a terrible shock to her.

"But what a terrible shock it must have been for them."

It must have been a terrible shock for a young girl.

I'd just received a terrible shock, I wasn't thinking clearly.

"It must have been a terrible shock to his wife?"

I hadn't seen them carry her in from the car so it was a terrible shock for me.

It had been a terrible shock to realize I was on my own.

"It came as a terrible shock to all of us."

He has a terrible shock and loss; so have they.

Then I got the most terrible shock of my life.