This is a problem of concord, Angerman, and not easily soluble; much depends on what is considered most natural in the situation. Grammatical concord calls for the plural verb with a list ( there are A, B and C ), and this is considered correct for more formal, written work; spoken use, however, often depends on notional concord-- the speaker may be thinking of each item one by one, or of the single group of items; in fact, the singular form is becoming the default form in spoken English (partly because of the ease of pronunciaton of there's vs there're : there's lots to do today . The idea of notional concord (supported by concord of proximity) is clear in these common choices: There was/were a spoon and crackers on the table.
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