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Before I (had had a chance / had a chance) to look at them, my sister had run ur and pulled them out of my nand.

This was the news I (had been waiting / waited) for. 

When Mum and Dad (hear / had hear) the news? they immediately started shoting with joy.

By the time I (had had breakfast / had breakfast) Mum had already called Grandma and Granpa.