Remember - the Past Perfect is tense we use to talk about something which happened in the past before another event in the past. A sort of double-past. Yes, I understand:

Luckily I ______ to lock he door before I went out, so I wasn't burgled. 

John _______ for test and as a result he failed.

______ he ______ read the manual before he started to repair the car?

John said he _______ Peter all day even though Peter was supposed to be in the office.

Mary said she ______ everything that they had asked her to. 

Jane said she and Mary _______ Paris two years ago.

Jim promised his Mum that he ______ money from her purse.

Kate asked Mary if she _______ seen her keys anywhere.

I _______ my tax returns just before the deadline passed.

James _______ the lion's cage just before it bit him.