5. She was not______ impressed by the story Paul shared with her," for she had already heard of it.
in the least
at the most
least of all
for the most
本题考查介词短语辨析。句意:她一点也没有被Paul分享的故事打动，因为她已经听过一次了。in the least意为“一点；丝毫”; at the most意为“至多;不超过”; least" of all意为“最不，尤其”; for the most意为“对大多数”。根据句意，可知in the least“一点;丝毫”符合句意，故本题选A。