Fill in the blanks, each using one of the given words or phrases

Fill in the blanks, each using one of the given words or phrases below in its proper form.
lose sight of   revolve around/about   up to   give off   in advance   expose to   turn ... off   a shower of   project oneself into   merge ... with   take advantage of   with respect to
When the fireworks exploded in the air, we saw_________ sparks flling down.
【正确答案】：a shower of