<span>An annotated bibliography provides specific information about each source you have used</span>
Answer:
it could be either by or on.
on foot i suppose.
Explanation:
Generally speaking, "-ves" should be added to words that end in "-f" or "-fe" to make them plural. Examples of this are knife becoming knives, half becoming halves, and wife becoming wives. Words ending in "-ff" just receive a "-s" to become plural, and example being sniff becoming sniffs.
