The word could be a series of past tense words
I slept late this morning
I bathed late this morning
But the words that make most sense to me is
I ate late this morning
The subordinate clause is : " which had been dumped into the city water system "
Answer:
he shows his confidence by stabbing him in the eye (if you read it thats what it said,so that can be one answer i think).
Explanation:
