The word "<u>verb</u>" simply means <em>'description of an action, assert, or event that is made into the main purpose of your predicate in your judgement' </em>
Now that we have the definition of the word verb we can answer your question
"<em>Has</em>" is past tense but it is THIRD person present
"<em>Have</em>" is when you own something
<h2>Answer: HAS ✅</h2>
BECAUSE "I SAW last night"
Note: usually people read the sentence to themselves until it makes easier sense to them or use context clues in the sentence to answer the particular question(s)
function <em>half(x)</em> which has return type <em>integer</em> and accept an <em>integer </em>type parameter <em>'x'</em> and return the an <em>integer </em>value in variable <em>'a' </em>which is closest to <em>half</em> that of the parameter '<em>x'</em>.