I have two sentences I don't know which variants to chose.
- The storm died down, the sky cleared and the sun was shining again.
- Last summer I visited places where I spent my childhood. The trees my father planted when I was a child turned into big tall trees.
The key says:
- had died down, had cleared.
- had spent, had planted.
Why? I think in the first sentences Past Simple goes quite well with that picture. Succession of past actions and it's obvious enough to that each action took place before another one. As for the second one, I just think I'm right. Childhood is a finished period of time (peculiar time).
Off topic: could I say
"raved itself out" (I found it in vocabulary) instead of
"became brighter" instead of
"are now big tall tress" instead of
"turned into..." or in this case I should use Past Simple because of sequence of tenses.