had

He changed his name,　　　　that nobody would find out what he had done before.

Harry, who had failed in the final exam, had a great worry ______________ his mind.

--I told you that he would come to see you.--Actually I had little doubt _____ his story was true.

I didn’t know the word; I had to ______ a dictionary.

You don’t know about the difficulty I had ______ the work then at all.

If I had _______, I’d visit Europe, stopping at all the small interesting places.

He changed his name,　　　　that nobody would find out what he had done before.

Only when he had handed in his exam paper _____ he had made several grammatical mistakes.

Of all the sports shoes, John bought ______pair, Then he had some money for socks. 

His wife had the front door painted green yesterday, _____ she?