There is no rule of grammar that prohibits the use of the word 'and' more than once in a sentence.
you can only do so by saying..
I bought some bread, butter, and cheese and decided no to eat them until tomorrow.
I hope that helped.
Yes.
Yes
it can
Of course. In a sentence, you can still use more than one "y."
yes.
one .
to show that their is more than one.
the sentence covers more than one time period.
no, or else it wont be a fact
Ambiguous
compound subject
More than one "you". They came down the road.
You cannot use more than one sentence because a question is usually only in one sentence. WikiAnswers wants to focus on the actual question part of the question rather than the unnecessary sentences that would come before the actual question, so questions must be in one sentence.
Example sentence - I had the opportunity to converse with the sage scholar on more than one occasion.